be necessary for和be necessary to 有何区别

be necessary for和be necessary to 有何区别 be necessary for的用法1.I can't decide which to buy.这里可不可以用what to 2.be necessary for和be necessary to的区别? be necessary for和 be necessary to的区别老师说be important to后面加人,如果还有下文用be important for sb doing sth那be necessary to 和be necessary是不是也是这种用法?还是说be necessary to do sth be necessary for doing st be necessary be not necessary= 英语翻译be necessary中文.、 be necessary for sb./sth的反义词说是什么? 英语厉害的进来It was about training and sacrifice necessary for athletic to Complete inthe olympicssacrifice necessary可以这样表达的?sacrifice和training是名词 be necessary for 然后呢..... To be taken when necessary. 请用must和have to来代替下列带括号的部分.she said (it would be necessary for us to)stay here.(it is necessary for me to)have some help.(it was be necessary for him to)go out last night.对他来说昨晚出去是必要的 he must had go be good for 和 be good to be harmful to 和be bad for it will be necessary for you to see a doctor求翻译 it will be necessary for you to see a doctor 句中的will be necessary for same it friends the not is to 连词成句 it is necessary to restart the device in order for changes to be in effect 翻译 It will be necessary for you to make so much noise?翻译 be famous of和be famous for,be famous as