I can vouch for the fact that he is a good worker.

我他是好员工。

I can undertake that you will enjoy the play.

我你会喜欢这个剧。

I wager that it shall be so.

我(它)会这样。

I promise all costs will be readily returned.

我所有的费用会迅速偿还。

I give an undertaking that we shall proceed with the legislation.

我我们将项立法工作。

Can I have your assurance that this will go no further?

你能向我不告诉别人吗？

I will warrant him an honest and reliable fellow.

我可以他是一个诚实可靠的人。

He gave me a definite assurance that the repairs would be finished tomorrow.

他给我切, 修理将于明日完工。

I guarantee you'll enjoy yourself.

我你会过得很快活。

I warrant you he is telling the truth.

我向你他说的是真话。

Let me assure you that it was not intentional.

我向你不是故意的。

I'm sure I can easily get the book from the bookstand in the corner of the main street.

我我能很容易地从主街角上的书亭里买到这本书。

I'd sworn off alcohol.

我已戒酒。

I assure you (that)there's no danger.

我向你没有危险。

I'll undertake for your security.

我将你的安全。

I promise on my honour.

我以我的名誉。

I pledge you my words.

我向你说话算数。

Jane promised to support me at the meeting, but then she stabbed me in the back by supporting David instead.

简向我在会上支持我，可是到时候她又转而支持戴维，在我背后捅了一刀。

Spearfish Canyon Rd took us to I90, which we took into Wyoming and on to Sundance (not the Robert Redford film festival burg, I assure you).

斯皮尔菲什峡谷路把我们带到I90，我们考虑到怀俄明州，并就森丹斯（而不是罗伯特雷德福电影节伯格，我向你）。

One day,he took me aside and promised me a sliver fourpenny on the first of every month if I would keep my eye open for a sailor with one leg and let him know the moment he appeared.

有一天他把我拉到一边，向我每月初给我四便士，如果我能留心注意一个只有一条腿的水手，并且在他（水手）出现的一刻告诉他。