substitution

• n. 代替；[数] 置换；代替物

词态变化

英文词源

substitution (n.)

late 14c., "appointment of a subordinate or successor," from Middle French substitution or directly from Late Latin substitutionem (nominative substitutio) "a putting in place of (another)," noun of action from past participle stem of Latin substituere "put in place of another, place under or next to, present, submit," from sub "under" (see sub-) + statuere "set up," from PIE root *sta- "to stand," with derivatives meaning "place or thing that is standing" (see stet).

双语例句

1. In my experience a straight substitution of carob for chocolate doesn'twork.

根据我的经验，用角豆制品直接代替巧克力行不通。

来自柯林斯例句

2. We use saccharin in substitution for sugar.

我们用糖精代替糖.

来自《简明英汉词典》

3. Substitution, No.3 for No.4.

换人,4号下, 3号上.

来自《现代汉英综合大词典》

4. Substitution: Player No. 4 for No. 3.

换人: 3号下,4号上.

来自《现代汉英综合大词典》

5. Many groups can be added by nucleophilic substitution on a diazonium salt.

许多基团可通过向得自胶的重氮盐作亲核取代而加以导入.

来自辞典例句