You really must have your wits about your when dealing with such people.

跟这类人打交道，你必须格外警觉。

Don't worry, it's in the bag.

不用担心， 这事儿十拿九稳。

Don't beat around the bush.

别兜圈子了。

It's the best we can do under the circumstances.

情况就是这样， 我们已经尽力而为了。

I think you are getting off the subject. Could we get back to the main point, please?

我觉得你跑题了。 我们能不能回到主题上来？

That doesn't quite suit me.

我对次不甚满意。