My secretary is very discreet. She never tells anyone unconcerned anything about the company's business.

"我的秘书很谨慎,她对公司的业务从不对任何无关的人谈起。"

It wasn't discreet of you to ring me up at the office.

你打电话到我办公室真太鲁莽了。

We have discovered that the young man is a discreet and economical fellow.

我们发现这年青人谨慎又有经济头脑的小伙子。

I should make a few discreet enquiries about the firm before you sign anything.

我应先审慎打探一下这家公司的底细, 然后你再签字。