needless adj. 不必要的，不需要的；
例句
Banning smoking would save needless deaths.
禁止吸烟会免除不必要的死亡。
Much of this suffering is needless.
这些苦难中许多都是不必要的。
Needless to say, I was not pleased.
不用说，我并不高兴。
Needless to say, this can get very loud.
不用说，这一定非常吵。
Needless to say, she never got the note.
不必说，她从来没有取得这张便条。
