Pointer Meaning(定義、用法、例句與發音)

pointer

noun

快速理解

What does "Pointer" mean?What are 2-3 core uses of "Pointer"?

「pointer」主要指用於指示的物體或符號,也延伸指電腦中的游標或提供建議的人。

  1. 1

    指示物

    EN: a stick or hand used to point at things on a map or board

    翻譯: 指示棒;教鞭;用手指向某物的手

  2. 2

    標記/符號

    EN: a mark or symbol that shows information on a scale or dial

    翻譯: (儀表或刻度盤上的)指針;標記

  3. 3

    電腦游標

    EN: a small arrow or symbol on a computer screen that you control with a mouse

    翻譯: (電腦螢幕上的)游標,光標

  4. 4

    建議者

    EN: a piece of advice or a helpful suggestion

    翻譯: 線索;提示;建議

小提醒:在電腦領域,「pointer」常指「游標」,但在程式設計中,它更常指儲存記憶體位址的「指標」,這是兩個不同的概念。

發音(How to Pronounce "Pointer" in English

How to pronounce "Pointer" in English?"Pointer" US vs UK pronunciation

點擊下方的 US / UK 按鈕可播放發音。

Real-life Examples of "Pointer" from YouTube Videos

How to separate fact and fiction online | Markham Nolan

TED

so when someone retweets a message, a connection is made between two dots, and the more times that message is retweeted by other people, the more you get to see these nodes, these connections being made, And it's an amazing way of visualizing the conversation, but what you get is hints at who is more interesting and who is worth investigating, And as the conversation grew and grew, it became more and more lively, and eventually you were left with this huge, big, rhythmic pointer of this conversation.

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Definitions(定義)

What are the definitions of "Pointer"?How does "Pointer" change by context?

1. a thin stick or hand used to point at something

用來指向某物的細棒或手

The teacher used a wooden pointer to indicate the countries on the map.

老師用一根木製教鞭指向地圖上的國家。

He raised his pointer finger to show the direction.

他舉起食指來指示方向。

2. a symbol on a computer screen that shows where you can click

電腦螢幕上顯示可點擊位置的游標符號

Move the mouse to position the pointer over the icon.

移動滑鼠將游標定位在圖示上。

The pointer changed to a spinning wheel while the file was loading.

載入檔案時,游標變成了一個旋轉的圓圈。

3. a helpful piece of advice or information

有用的建議或資訊

The book gives some useful pointers for beginner gardeners.

這本書為園藝新手提供了一些有用的建議。

Can you give me a few pointers on how to improve my presentation?

你能給我一些如何改進簡報的建議嗎?

4. a sign that shows how a situation is developing

顯示情況發展的跡象

Rising unemployment is a clear pointer to a weakening economy.

失業率上升是經濟疲軟的明確跡象。

The latest sales figures are a positive pointer for the company's future.

最新的銷售數據對公司的未來是一個積極的指標。

5. a variable in computing that stores the memory address of another value

計算機中儲存另一個值記憶體位址的變數

The programmer used a pointer to efficiently access the data structure.

程式設計師使用指標來有效率地存取資料結構。

A null pointer indicates that it is not pointing to any valid memory location.

空指標表示它沒有指向任何有效的記憶體位置。

Grammar & Patterns(句型)

What are common sentence patterns for "Pointer"?How to make natural sentences with "Pointer"?
PatternMeaningExample
pointer + to + noun指向…的指標The pointer to the next node is null. (指向下一個節點的指標是空的。)
pointer + on + noun關於…的提示或建議The article provides some useful pointers on how to start a business. (這篇文章提供了一些關於如何創業的有用建議。)
follow + pointer跟隨指標The program will follow the pointer to access the data. (程式將跟隨指標來存取資料。)
move + pointer移動指標Move the mouse pointer to the top of the screen. (將滑鼠指標移到螢幕頂端。)
a pointer that + clause一個…的指標He is a pointer that shows the direction of the market. (他是一個顯示市場方向的指標。)
give + someone + a pointer給某人提示Can you give me a pointer on solving this problem? (你能給我一個解決這個問題的提示嗎?)

用法說明

How is "Pointer" different from similar structures?What usage mistakes are common with "Pointer"?

pointer to vs pointer of

  • pointer to 通常表示指向某個抽象概念、目標或方向,強調其指示或引導的功能。
  • pointer of 則較常表示某個具體事物或數據的指標,尤其在電腦科學中,指記憶體位址或資料結構的參考。
  • 在一般用法中,pointer to 更為常見且通用,用於指示建議、方向或線索。 EN: The report provides a clear pointer to future research directions. 翻譯: 這份報告為未來的研究方向提供了明確的指引。

EN:In C++, a pointer of type int* holds the address of an integer variable.

翻譯:在 C++ 中,一個 int* 類型的指標儲存著一個整數變數的位址。

總結建議

在大多數情況下,表示「指向…的指標」時,使用 pointer to;在電腦科學的特定語境中,提及具體數據類型或物件的指標時,可使用 pointer of

易混淆對比

What is the difference between "Pointer" and similar words?How to choose "Pointer" vs alternatives?

pointer vs cursor

「pointer」通常指滑鼠在螢幕上的箭頭圖示,而「cursor」則更常指文字輸入位置的閃爍標記或特定形狀的游標。

pointer vs indicator

「pointer」通常指具體的指向工具或螢幕上的箭頭,而「indicator」則泛指任何顯示狀態、方向或資訊的標誌或訊號。

pointer vs reference

在程式設計中,「pointer」是儲存記憶體位址的變數,而「reference」是某個變數或物件的別名,兩者都涉及間接存取,但機制與用法不同。

口語用法

How is "Pointer" used in spoken English?What is the spoken vs formal difference for "Pointer"?

引述

在口語中,pointer 常用來引述或總結別人給的建議或資訊,表示「一個有用的提示或方向」。 EN: He gave me a few pointers on how to improve my presentation. 翻譯: 他給了我一些關於如何改進簡報的指點。

EN:Thanks for the pointer about the new restaurant; we loved it!

翻譯:謝謝你告訴我那家新餐廳的資訊,我們很喜歡!

語氣強調

當想強調某個建議或資訊特別關鍵、有幫助時,會用 pointer 來加強語氣,常與 good, great, helpful 等形容詞連用。 EN: That was a really helpful pointer you gave me yesterday. 翻譯: 你昨天給我的那個建議真的很有幫助。

EN:Just one more pointer before you start: remember to save your work often.

翻譯:在你開始之前,再給你一個重要提醒:記得要經常存檔。

停頓填充

在思考或組織接下來要說的話時,pointer 有時會作為一個短暫的停頓填充詞,用來引出一個建議或想法。 EN: So, my pointer would be... maybe try calling them directly. 翻譯: 所以,我的建議是...或許試試直接打電話給他們。

EN:Okay, a quick pointer — have you checked the settings menu?

翻譯:好,一個小提示 — 你檢查過設定選單了嗎?

正式寫作注意:在正式或學術寫作中,pointer 的上述口語用法較少見。應使用更正式的詞彙,如 suggestion, recommendation, advice, 或 indication 來替代。

常見短語

What common collocations use "Pointer"?What fixed phrases with "Pointer" should I remember?

mouse pointer

noun + pointer

滑鼠游標

laser pointer

noun + pointer

雷射筆

give a pointer

verb + a + pointer

給予提示或建議

a pointer to something

a + pointer + to + noun

某事的跡象或線索

hour/minute pointer

noun + pointer

時針/分針

wild pointer

adjective + pointer

野指標(程式設計中指向無效記憶體位置的指標)

常見錯誤

What are common mistakes with "Pointer"?Which "Pointer" sentences look correct but are wrong?

×The pointer of the clock shows 3 o'clock.

The hand of the clock shows 3 o'clock.

在描述時鐘或手錶的指針時,應使用 'hand' 而非 'pointer'。'Pointer' 通常指電腦游標、指示棒或儀表上的指針,而非時鐘指針。

×He gave me some good pointers for my interview.

He gave me some good tips for my interview.

雖然 'pointer' 在非正式場合可表示 '建議' 或 '提示',但在口語中更常用 'tip' 或 'advice'。'Pointer' 在此語境下聽起來較不自然或過於正式。

×Look at the pointer on the map.

Look at the arrow on the map.

地圖上指示方向的符號通常稱為 'arrow'(箭頭),而非 'pointer'。'Pointer' 可能指地圖上的圖釘或標記點,但不用於指方向箭頭。

×This fact is a pointer that he is guilty.

This fact is an indication that he is guilty.

表示 '跡象' 或 '暗示' 時,更自然的用詞是 'indication', 'sign', 或 'clue'。'Pointer' 在此語境下不常用,可能造成理解困難。

×I need a pointer to write on the whiteboard.

I need a pointer to point at the whiteboard.

中文可能說 '用 pointer 寫在白板上',但英文 'pointer' 是指 '用來指的東西'(如教鞭、雷射筆),不是書寫工具。正確動詞應為 'point at'(指向)。

詞形變化

What are the word forms of "Pointer"?What are tense/participle forms of "Pointer"?