substitute

1. V-T/V-I If you substitute one thing for another, or if one thing substitutes for another, it takes the place or performs the function of the other thing. 以…代替; 代替

They were substituting violence for dialogue. 他们那时在以暴力代替对话。

He was substituting for the injured William Wales. 他那时在代替受伤的威廉·威尔士。

2. substitutionN-VAR 代替

In my experience a straight substitution of carob for chocolate doesn't work. 以我的经验，角豆直接代替巧克力不会奏效。

3. N-COUNT A substitute is something that you have or use instead of something else. 替代者

She is seeking a substitute for the very man whose departure made her cry. 他在寻找一个男人的替代者，这个男人的离去曾使她伤心落泪。

4. N-COUNT If you say that one thing is no substitute for another, you mean that it does not have certain desirable features that the other thing has, and is therefore unsatisfactory. If you say that there is no substitute for something, you mean that it is the only thing which is really satisfactory. 可替代者

The printed word is no substitute for personal discussion with a great thinker. 印刷字无法替代与伟大思想家的当面交流。

5. N-COUNT In team games such as football, a substitute is a player who is brought into a game to replace another player. 替补队员

Jefferson entered as a substitute in the 60th minute. 杰斐逊在第60分钟时作为替补队员上了场。