subtraction
英[s?b'tr?k?n]
美[s?b'tr?k??n]
- n. [數(shù)] 減法；減少；差集
詞態(tài)變化
復數(shù):?subtractions;動詞:?subtract;
助記提示
1、sub- + tract- + -ion.
英文詞源
- subtraction (n.)
- c. 1400, "withdrawal, removal," from Late Latin subtractionem (nominative subtractio) "a drawing back, taking away," from past participle stem of Latin subtrahere "take away, draw off, draw from below," from sub "from under" (see sub-) + trahere "to pull, draw" (see tract (n.1)). The mathematical sense is attested from early 15c.
Tou most know tat subtraccion is drawynge of one nowmber oute of anoter nomber. ["The Crafte of Nombrynge," c. 1425]
雙語例句
- 1. I looked at what he'd given me and did a quick subtraction.
- 我看著他給我的東西，快速做了個減法。
來自柯林斯例句
- 2. She's ready to learn simple addition and subtraction.
- 她已經可以開始學習簡單的加減法。
來自柯林斯例句
- 3. children learning addition and subtraction
- 學習加減的兒童
來自《權威詞典》
- 4. The difference is found by subtraction.
- 用減法得出差額.
來自《簡明英漢詞典》
- 5. The plus sign is used in addition and the minus is used in subtraction.
- 加號用于加法;減號用于減法.
來自《簡明英漢詞典》