No golf teacher worth his salt would ever recommend that you grip the club tightly.

没有哪位称职的高尔夫教练会建议你紧紧地握住球杆。

He is not worth his salt!

他不值这个价！

Any teacher worth his salt knows that.

只要不是混饭吃的教师，都明白这一点。

Any teacher worth his salt can answer the question.

只要是称职的老师都能回答这个问题。

Tom works so hard that I think he's worth his salt.

汤姆非常认真地工作，我认为他十分称职。