认为有重要性英语

be important to

It is important for sb. to do sth.

consider...useful/consider...helpful.用think也可以。例句：Iconsideritusefulperformingtheexperiment.我认为做这试验是有用的。Whendoyouthinkwe'vegoingtogetontosomethinguseful?你我认为我们什么时候开始干有用的事呢？我认为这很有用Ithinkithelps

I think it is very important to learn English.