1. an amount or number of something
數量，數額
We need a large quantity of paper for the project.
我們這個專案需要大量的紙張。
The exact quantity of ingredients is important for baking.
食材的準確數量對於烘焙來說很重要。
Quantity Meaning（定義、用法、例句與發音）
quantity
noun
快速理解
What does "Quantity" mean?What are 2-3 core uses of "Quantity"?
「quantity」指事物的數量或總額，可以是具體可數的，也可以是抽象不可數的。
- 1
數量；總額
EN: the amount or number of something
翻譯: 某物的數量或數目
- 2
大量
EN: a large amount or number
翻譯: 大量的；為數眾多的
- 3
物理量
EN: something that has magnitude and can be measured in physics or mathematics
翻譯: 在物理或數學中，具有大小、可以測量的東西
小提醒：注意「quantity」用於不可數名詞時，通常指「總量」；用於可數名詞時，則指「數目」。例如「a large quantity of water」（大量的水）與「a large quantity of books」（大量的書）。
發音（How to Pronounce "Quantity" in English）
How to pronounce "Quantity" in English?"Quantity" US vs UK pronunciation
點擊下方的 US / UK 按鈕可播放發音。
Real-life Examples of "Quantity" from YouTube Videos
Christina Warinner: Tracking ancient diseases using ... plaque
TED
“it's abundant in quantity before the present day and it's ubiquitous worldwide.”
(1 out of 6)
Definitions（定義）
What are the definitions of "Quantity"?How does "Quantity" change by context?
2. a large amount of something
大量，大宗
The factory produces goods in quantity.
這間工廠大量生產商品。
It's cheaper to buy in quantity.
大量購買比較便宜。
3. a property that can be measured or counted
（可測量或計算的）量
Time and distance are fundamental quantities in physics.
時間和距離是物理學中的基本量。
The equation involves both known and unknown quantities.
這個方程式包含了已知量和未知量。
Grammar & Patterns（句型）
What are common sentence patterns for "Quantity"?How to make natural sentences with "Quantity"?
| Pattern | Meaning | Example |
|---|---|---|
| quantity + of + [uncountable noun] | 表示不可數事物的數量 | We need a large quantity of water. (我們需要大量的水。) |
| a + [adjective] + quantity + of + [noun] | 表示特定數量的某物 | He bought a small quantity of apples. (他買了少量的蘋果。) |
| in + quantity | 大量地，大批地 | This product is only sold in quantity. (這產品只大量出售。) |
| an unknown quantity | 未知數；難以預測的人或事物 | The new player is still an unknown quantity. (這位新球員仍是個未知數。) |
用法說明
How is "Quantity" different from similar structures?What usage mistakes are common with "Quantity"?
quantity of vs quantity for
- quantity of + [名詞]：用於表示某種物品或物質的具體數量，強調「...的量」。
- quantity for + [名詞/動名詞]：用於表示為特定目的、活動或情況所需的數量，強調「用於...的量」。
- a large/small quantity of：是固定搭配，指「大量/少量的...」。
- in quantity：作為副詞片語，意為「大量地」。 EN: We need to determine the exact quantity of cement for the foundation. 翻譯: 我們需要確定地基所需的水泥確切數量。
EN:The recommended quantity for watering young plants is two liters per week.
翻譯:為幼苗澆水的建議數量是每週兩公升。
總結建議
一般情況下，表示具體物品的數量時使用 quantity of，而表示為某種用途所需的數量時則使用 quantity for。
易混淆對比
What is the difference between "Quantity" and similar words?How to choose "Quantity" vs alternatives?
quantity vs amount
quantity 通常指可數或可測量的具體數量，強調數字或單位；amount 通常用於不可數名詞，強調總量或總額。
quantity vs number
quantity 可指可數或不可數的總量，涵蓋範圍較廣；number 專指可數項目的具體數目。
quantity vs volume
quantity 是泛指數量或總量的通用詞；volume 特指三維空間的容積、音量或書籍的卷冊。
口語用法
How is "Quantity" used in spoken English?What is the spoken vs formal difference for "Quantity"?
引述
在口語中，當引述或提及一個具體的數字或數量時，常用 "quantity" 來指代。 EN: The recipe calls for a cup of flour, but I'm not sure about the exact quantity of sugar. 翻譯: 食譜上說要一杯麵粉，但我不確定糖的具體份量。
EN:We ordered a large quantity of paper, but they only delivered half.
翻譯:我們訂購了大量的紙張，但他們只送來了一半。
語氣強調
與 "a lot of" 或 "much" 相比，使用 "quantity" 可以讓語氣聽起來更正式或更具體，即使在日常對話中也是如此。 EN: That's not just a few books, that's a significant quantity. 翻譯: 那可不只是幾本書，那是相當大的數量。
EN:I didn't realize we had such a vast quantity of old photos in the attic.
翻譯:我沒意識到閣樓裡有這麼大量的舊照片。
停頓填充
在思考或組織語句時，有時會用 "the quantity of..." 或 "in terms of quantity..." 作為短暫的停頓，引出後續要說明的具體數字或比較。 EN: The main issue here is... the quantity of waste we produce every day. 翻譯: 這裡的主要問題是...我們每天產生的垃圾量。
EN:Our advantage isn't quality, but rather... in terms of quantity, we can deliver faster.
翻譯:我們的優勢不在品質，而是...就數量而言，我們可以更快交貨。
正式書寫注意：在學術或正式商業寫作中，"quantity" 是標準用詞。但在非常口語或隨意的對話中，母語者更常使用 "amount"、"number" 或 "a lot of"。在正式寫作中，應避免將 "quantity" 用於上述口語中的停頓填充功能。
常見短語
What common collocations use "Quantity"?What fixed phrases with "Quantity" should I remember?
a large quantity of
a large quantity of [noun]
大量的...
in quantity
in quantity
大量地，成批地
unknown quantity
unknown quantity
未知數；難以預測的人或事物
quantity over quality
quantity over quality
重數量勝於質量
a small quantity of
a small quantity of [noun]
少量的...
order quantity
order quantity
訂購數量
常見錯誤
What are common mistakes with "Quantity"?Which "Quantity" sentences look correct but are wrong?
×We need a large quantity of informations.
✓We need a large quantity of information.
"Quantity of" 後面通常接不可數名詞或集合名詞。"Information" 是不可數名詞，不能加 "s"。
×A large quantity of books was on the table.
✓A large quantity of books were on the table.
當 "a quantity of" 後面接複數名詞時，動詞通常用複數形式，因為重點在於後面的名詞。
×The quantity of students in the class is thirty.
✓The number of students in the class is thirty.
"Quantity" 通常用於不可數或大量的事物，而具體可數的人或物（且數量明確）應使用 "number"。
×We need to order quantity of materials.
✓We need to order a quantity of materials.
"Quantity" 作為名詞表示「一定數量」時，前面通常需要冠詞（a, the）或限定詞（this, that, large, small）。
×We measured the quantity of liquid in milliliters.
✓We measured the amount of liquid in milliliters.
雖然 "quantity" 和 "amount" 常互換使用，但在精確測量或科學語境中，"amount" 更常用於液體、氣體等不可數物質。"Quantity" 更通用，可指任何可測量的事物。
×We have a sufficient quantity for our needs.
✓We have a sufficient quantity for our needs. (Correct, but incomplete for the intended mistake) OR "We have a sufficient quantity of supplies for our needs."
當 "quantity" 後面要接具體的物品時，必須使用 "quantity of + 名詞" 的結構。單獨使用 "quantity" 時，上下文必須已明確指出是什麼物品。
詞形變化
What are the word forms of "Quantity"?What are tense/participle forms of "Quantity"?