1. based on clear, sound reasoning
基於清晰、合理推理的
Her argument was logical and easy to follow.
她的論點合乎邏輯且易於理解。
The next logical step is to analyze the data.
下一個合乎邏輯的步驟是分析數據。
Logical Meaning（定義、用法、例句與發音）
logical
adjective
快速理解
What does "Logical" mean?What are 2-3 core uses of "Logical"?
指符合邏輯規則、推理合理或基於理性思考的。
- 1
符合邏輯的
EN: following the rules of logic; reasonable and sound
翻譯: 遵循邏輯規則的；合理且嚴謹的
- 2
推理上必然的
EN: expected or sensible based on the information or situation
翻譯: 基於現有資訊或情況，可預期或合理的
- 3
基於理性思考的
EN: based on clear, rational thinking rather than emotion
翻譯: 基於清晰、理性的思考，而非情感
小提醒：注意 'logical' 與 'reasonable' 的細微差別。'Logical' 強調推理過程符合邏輯規則，而 'reasonable' 更側重於在常識或情境下是合情合理的。
發音（How to Pronounce "Logical" in English）
How to pronounce "Logical" in English?"Logical" US vs UK pronunciation
點擊下方的 US / UK 按鈕可播放發音。
Real-life Examples of "Logical" from YouTube Videos
Amos Winter: The cheap all-terrain wheelchair
TED
“So the logical evolution here is to just make a wheelchair with mountain bike components, which many people have done.”
(1 out of 22)
Definitions（定義）
What are the definitions of "Logical"?How does "Logical" change by context?
2. expected or sensible under the circumstances
在特定情況下預期或合理的
Given his experience, his promotion was a logical choice.
考慮到他的經驗，他的晉升是一個合理的選擇。
It's logical to assume prices will rise if demand increases.
如果需求增加，推測價格會上漲是合乎情理的。
3. of or according to the formal rules of logic
屬於或依據形式邏輯規則的
The philosopher presented a logical proof for his theory.
這位哲學家為他的理論提出了一個邏輯證明。
A logical fallacy can undermine an entire argument.
一個邏輯謬誤可能摧毀整個論證。
4. capable of clear, reasoned thinking
能夠進行清晰、理性思考的
He is a very logical person who rarely lets emotions cloud his judgment.
他是一個非常理性的人，很少讓情緒影響他的判斷。
Grammar & Patterns（句型）
What are common sentence patterns for "Logical"?How to make natural sentences with "Logical"?
| Pattern | Meaning | Example |
|---|---|---|
| logical + noun | 合乎邏輯的... | That is a logical conclusion. (那是一個合乎邏輯的結論。) |
| It is logical + that-clause | ...是合乎邏輯的 | It is logical that prices will rise. (價格會上漲是合乎邏輯的。) |
| It is logical + to-infinitive | 做...是合乎邏輯的 | It is logical to assume he will agree. (假設他會同意是合乎邏輯的。) |
| seem/logical + to + person | 對某人來說似乎/合乎邏輯 | His argument seems logical to me. (他的論點對我來說似乎合乎邏輯。) |
| the logical + thing/step/choice | 合乎邏輯的事情/步驟/選擇 | The logical next step is to test the theory. (合乎邏輯的下一步是測試這個理論。) |
| follow a logical + path/sequence/progression | 遵循合乎邏輯的路徑/順序/進程 | The chapters follow a logical progression. (這些章節遵循著合乎邏輯的進程。) |
用法說明
How is "Logical" different from similar structures?What usage mistakes are common with "Logical"?
logical to do vs logical doing
- 形容詞 logical 通常後接 to + 動詞原形 的不定詞片語，說明某個行動或結論是合理的。
- 直接後接 動名詞 (doing) 的結構較為少見且不自然，通常用於特定語境，如 It is logical doing... 或 There is no logical doing...。
- 在 It is/was/seems logical 這類主詞為虛主詞 it 的句型中，必須使用 to do 來引導真正的主詞。 EN: It is logical to double-check the data before the presentation. 翻譯: 在簡報前再次檢查數據是合乎邏輯的。
EN:There is no logical checking the same file twice.
翻譯:重複檢查同一份檔案沒有邏輯可言。
總結建議
一般情況下，表達「做某事是合乎邏輯的」應使用 logical to do 的結構。
易混淆對比
What is the difference between "Logical" and similar words?How to choose "Logical" vs alternatives?
logical vs rational
「logical」強調推理過程的結構與形式正確性，而「rational」則側重基於理由、合乎情理的判斷，常涉及價值觀或實際目標。
logical vs reasonable
「logical」專注於推理鏈的嚴密性，「reasonable」則指在常識或公平性上可接受、不過分。
logical vs coherent
「logical」特指符合邏輯學規則，「coherent」則泛指想法或表達清晰、有條理、易於理解。
口語用法
How is "Logical" used in spoken English?What is the spoken vs formal difference for "Logical"?
引述
在對話中，當你重複或引述他人剛說過的話時，可以用 "logical" 來表示你認為該觀點合理或顯而易見。 EN: A: "If the battery is dead, the car won't start." B: "Logical." 翻譯: A: 「如果電池沒電了，車子就發不動。」 B: 「有道理。」
EN:A: "We should check the manual first." B: "Yeah, that's the logical step."
翻譯:A: 「我們應該先查一下手冊。」 B: 「對，這是合理的步驟。」
語氣強調
用來強調某個結論或行動方案是基於清晰、合理的推理，而非情感或猜測。 EN: "It's only logical to save some money before making a big purchase." 翻譯: 「在做大筆消費前先存點錢，這只是基本常理。」
EN:"The logical thing to do is to ask for directions instead of getting more lost."
翻譯:「最合理的做法是去問路，而不是迷路得更嚴重。」
停頓填充
在組織思緒或尋找合適詞語時，用作短暫的填充詞，通常與 "it's" 或 "that's" 連用。 EN: "Well, it's... logical... to assume he'll be late, given his track record." 翻譯: 「嗯，這…很合理…考慮到他一貫的紀錄，他很可能會遲到。」
EN:"I think the plan is sound because, you know, it's just logical."
翻譯:「我覺得這個計畫很可靠，因為，你知道，這就很合乎邏輯啊。」
正式寫作注意：在學術或正式商業寫作中，應避免將 "logical" 用作簡單的口語附和（如 "Logical."）或填充詞。應使用更完整、精確的表述來闡述推理過程，例如 "This conclusion follows logically from the data presented..." 或 "The most reasonable course of action would be..."。
常見短語
What common collocations use "Logical"?What fixed phrases with "Logical" should I remember?
logical conclusion
adjective + noun
合乎邏輯的結論
logical step
adjective + noun
合乎邏輯的步驟
logical thinking
adjective + noun
邏輯思維
logical fallacy
adjective + noun
邏輯謬誤
logical explanation
adjective + noun
合乎邏輯的解釋
logical choice
adjective + noun
合乎邏輯的選擇
logical sequence
adjective + noun
邏輯順序
logical implication
adjective + noun
邏輯蘊含
perfectly logical
adverb + adjective
完全合乎邏輯
常見錯誤
What are common mistakes with "Logical"?Which "Logical" sentences look correct but are wrong?
×His conclusion is logic.
✓His conclusion is logical.
「logic」是名詞，指邏輯學或邏輯本身；「logical」是形容詞，用來描述事物具有邏輯性。這裡需要形容詞來修飾主詞「conclusion」。
×His plan is unlogical.
✓His plan is illogical.
「logical」的反義詞是「illogical」，而不是「unlogical」。這是固定搭配，需要記住。
×It is logical and reasonable.
✓It is logical.
「logical」（合乎邏輯的）本身已包含「reasonable」（合理的）的含義，在大多數語境中一起使用顯得多餘。除非要特別強調兩者，否則擇一使用即可。
×Staying calm in a crisis is a logical reaction.
✓Staying calm in a crisis is a rational reaction.
「logical」強調推理過程符合邏輯規則；「rational」則指基於理智、明智的判斷，更常用於描述人的行為或決定。在危機中保持冷靜是明智的（rational），但不一定是一個邏輯推理的結果（logical）。
×He is a very logical thinking person.
✓He is a very logical thinker. / He thinks very logically.
形容詞「logical」通常修飾名詞（如 thinker, conclusion, step），而不是直接修飾動名詞「thinking」。若要修飾思考方式，應使用副詞「logically」或改用合適的名詞。
詞形變化
What are the word forms of "Logical"?What are tense/participle forms of "Logical"?