adj.不需要的;無(wú)用的
Banning smoking would save needless deaths. 禁止吸煙會(huì)免除不必要的死亡。
If one is enough, a second although useful is needless. 如果一個(gè)夠了,那么第二個(gè)即使有用,也是不需要的。
Needless to say, he kept his promise. 不用說(shuō),他信守了他的諾言。
Needless to say, learning without thinking is useless. 不用說(shuō),學(xué)而不思則罔。
adv.毫無(wú)必要地