We are under an obligation to help.

我们有义务。

She was only too pleased to help.

她很乐意。

We can depend on him for help.

我们可他。

You can rely on me for help.

你可我来。

Help arrived in the shape of a policeman.

来的是一位警察。

His impotence to help made him despair.

他无力,感很失。

His presence is indicative of his willingness to help.

他的出席示他愿意。

I gladly avail myself of your offer.

我很乐意接受你的。

I was somewhat puzzled at his unwillingness to help.

他不愿意让我有点困惑。

I'm counting on you to help me through!

我正你底呢！

The monitor is a person who seldom asks a boon of others.

我们班长是个很少请人的人。

Would she take it amiss if I offered to help?

要是我提出，她会见怪吗？

You may ask anybody here for help.

你可请求这里的任何人。

Will you exercise your influence on my behalf?

你愿意运用你的权力给我吗？

At election time the party needs a lot of voluntary helpers.

大选时, 该党需要许多义务的人。

After much huffing and puffing, he agreed to help.

他发了好一阵脾气，最终还是同意了。

Through the instrumentality of the police he was able to locate his relatives.

靠警察, 他找了他的亲属。

She definitely had an ulterior motive in offering to help.

她主动提出, 肯定有不可告人的动机。

Through the good offices of a friend, I was able to get a ticket.

由于朋友的大力, 我才能得一张票。

We’re only too pleased to help.

我们非常愿意。