important
[im'pɔ:tnt]
adj.重要的,重大的,（指人）有很大影响或权威的
例句与用法:
1.It was one of the most important discoveries ever made.
这是所做出的最重大的发现之一.
2.He has made an important contribution to the company's success.
他对公司的成功作出了重要的贡献.
3.It is important that he not do it.
他不该做那事是有必要的.