needless

adj.

不需要的；不必要的；无用的；多余的

adv.

不需要地；不必要地；

n.

不需要；不必要；

needless to say不用说

1. Banning smoking would save needless deaths.
   禁止吸烟会免除不必要的死亡。
2. I cancel many needless words in the manuscript.
   我把我原稿许多不需要的字删去了。
3. If one is enough, a second although useful is needless.
   如果一个够了，那么第二个即使有用，也是不需要的。
4. Needless to say, he kept his promise.
   不用说，他信守了他的诺言。
5. Needless to say, learning without thinking is useless.
   不用说，学而不思则罔。

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