necessarynec•es•sa•ry /'nesɪsərɪ/

adj

1. 不可缺的，必须的，必要的

• It's necessary for you to have a rest. 你必须休息一会儿。

• The death of her husband made it necessary for her to find a job to support herself. 她丈夫的死使她必须找份工作养活自己。

• Is it really necessary for you to buy so many shoes? 你真的有必要买那么多鞋吗？

• I'll go back immediately, if necessary. 如果有必要的话，我马上回去。

2. 必然的，必定的

• a necessary consequence 必然的结果

词组a necessary evil (为做某事而)无可避免的弊端；不好但又不可少的东西

• Competition is regarded by people as a necessary evil. 竞争被人们看作是不好但又不可缺少的东西。