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(fù)數(shù):?subtractions;動(dòng)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(yǔ)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(gè)減法。
來(lái)自柯林斯例句
- 2. She's ready to learn simple addition and subtraction.
- 她已經(jīng)可以開(kāi)始學(xué)習(xí)簡(jiǎn)單的加減法。
來(lái)自柯林斯例句
- 3. children learning addition and subtraction
- 學(xué)習(xí)加減的兒童
來(lái)自《權(quán)威詞典》
- 4. The difference is found by subtraction.
- 用減法得出差額.
來(lái)自《簡(jiǎn)明英漢詞典》
- 5. The plus sign is used in addition and the minus is used in subtraction.
- 加號(hào)用于加法;減號(hào)用于減法.
來(lái)自《簡(jiǎn)明英漢詞典》