The staff is very helpful.

员工很乐于助人。

This book is very helpful.

这本书很有帮助。

He is very helpful at home.

他在家里很有帮助。

The policeman is very helpful.

那位警察很有帮助。

The teacher, Ms Brown, is very helpful.

老师布朗女士非常乐于助人。

Connectives are very helpful if you want to show a sequence of ideas or actions.

如果你想展示一系列的想法或行动，连接词非常有用。

Your idea is very helpful.

你的意见很有帮助。

His remarks were very helpful.

他的备注很有帮助。

This programme is very helpful.

这个日程表很有帮助。

You've been very helpful today.

你今天帮了大忙。