useful

名词：

名词: usefulness

更多词形：

副词: usefully | 名词: usefulness |

单词例句：

There was a long lag in forwarding mail to us.

转寄给我们的邮件晚了很久才拿到。

Ann will be a very useful addition to our team.

安来到我们队给我们增加了一员干将。

The queen was gracious enough to invite us.

女王亲切地邀请了我们。

She greeted us with a nod of the head.

她向我们点点头打招呼。

She makes herself generally useful.

她能干各式各样的工作。

A sauna in the hotel would be a useful amenity.

旅馆中的芬兰蒸汽浴室倒是个有益的好设施。

He piloted us through the large factory.

他领我们参观了这个大工厂。

I have a useful contact in New York.

我在纽约有个有用的人可以联系。

This reference book is very useful to our study.

这本参考书对我们的研究很有用。