【Please look it up in the Oxford Advanced Learner's Dictionary and you will find out how to use this word in the correct way.】

...................................................................................................................................................

①It's helpful for sb to do sth.

②sth is helpful to sb

③be helpful in doing sth

...................................................................................................................................................

....................................................................................................................................................

本文地址： http://www.goggeous.com/20241216/1/677048

文章来源：天狐定制

版权声明：除非特别标注，否则均为本站原创文章，转载时请以链接形式注明文章出处。