Be good at v.

Well done in …, well done in …, well done in ….

Now give an example to illustrate their different meanings:

You are good at English. You are good at English. You are good at English.

You learn English very well. Good English doesn't mean your English is good. For example, in the first grade of primary school, you worked hard and got good grades, but although your grades were good, you could not speak English well. You can't say that you are good at English. After all, you only learned English in the first grade of primary school. Besides, you may give up halfway. Maybe your second grade English is poor. )

Please look at some more examples to understand their differences in meaning.

Peanuts are very popular in this area.

Peanuts grow well in this area.

She is determined to do well in the factory.

She is determined to do well in the factory.

If there are good candidates, the plan will be done well.

In the hands of capable people, this plan will be carried out well.

Well, Steven didn't perform well in the second attempt.

Alas, Steven didn't jump well in the second attempt.

Are you good at business?

Can you do business?

A good administrator must be good at making decisions.

A good leader must be good at making decisions.