subtract是什么意思_subtract怎么读_中英文释义(含例句用法)

subtract: subtract: [16] To subtract something is etymologically to ‘pull it away’. The word comes from subtractus, the past participle of Latin subtrahere ‘pull away’. This was a compound verb formed from the prefix sub-, usually ‘under’ but here used in the sense ‘away’, and trahere ‘pull’ (source of English traction, tractor, trait, etc). The strictly mathematical use of the word is a post-Latin development.
=> contract, retract, traction, tractor, trait
subtract (v.): 1530s, "withdraw, withhold, take away, deduct," a back-formation from subtraction (q.v.), or else from Latin subtractus, past participle of subtrahere "take away, draw off." Related: Subtracted; subtracting. Mathematical calculation sense is from 1550s. Earlier verb form was subtraien (early 15c. in the mathematical sense), which is directly from the Latin verb.
Here he teches þe Craft how þou schalt know, whan þou hast subtrayd, wheþer þou hast wel ydo or no. ["Craft of Numbering," c. 1425]

词态变化

第三人称单数 subtracts;
过去式 subtracted;
过去分词 subtracted;
现在分词 subtracting;
名词 subtraction;

1. Please subtract a quarter of the money for your own use.: 请从你的零用钱中扣除四分之一.

3. In their first year at school, most children learn to add and subtract.: 入学第一年, 多数孩子都学加减法.

4. When you subtract two numbers, you subtract a subtrahend from a minuend.: 当你作两个数的减法时, 你用一个被减数去减另一个减数.

deduct 扣除

withdraw 撤回

take away 拿走

take off 起飞

take from 减少

detract 减损

remove 消除

discount 折扣

lessen 减少

take 拿

away 离开

decrease 减少

reset and subtract 清减

direct subtract 直接相减指令

subtract adder 【计】减法加法器, 加减器

subtract carry 【计】减进位

subtract test 【计】减测试

subtract statement 减法语句

decimal subtract 【计】十进制减法

subtract output 减法输出

subtract with borrow 【计】借位减

subtract pulse 减法脉冲，相减脉冲

暂无,等待补充.

1、sub- + tract-.