spare no efforts用单数还是复数?spare no efforts,以前我们老师用的是复数,但是我在网上看到的是单数effort.no 后面一半单复数都可以吧?

spare no efforts spare no efforts用单数还是复数?spare no efforts,以前我们老师用的是复数,但是我在网上看到的是单数effort.no 后面一半单复数都可以吧? spare no efforts什么意思 spare no effort 和 spare no efforts的区别 L must spare no efforts to do my bit spare no efforts in doing everythings 是什麽意思? 是spare no effort to do还是spare no efforts to do? 英语翻译不遗余力做什么事情的英语说法是spare no effort to do 还是 spare no efforts to do , spare no efforts in dong 与to do区别spare no effort to do与spare no efforts to do 多了个s有区别吗spare no efforts to do与spare no efforts in dong 有什么区别 when all these efforts ended in failure i will spare no effort to give I feel I must spare no efforts to do my bit. i fell i must spare no efforts to do my bit意思 一个英语词组的疑惑,是to spare no efforts to do还是to spare no effort to do这两个我都看过诶～ 不遗余力不做某事是spare no efforts not to 比如,我们应该不遗余力地不要使用一次性塑料袋,怎么说呢? spare no effect还是spare no effort? no matter what she does,she will spare no __ to do it well.A efforts B effects C affects D energy为何选A No teachers and no students 后面谓语动词用单数还复数? No teachers and no students 后面谓语动词用单数还复数?理由呢?