be + 形容词 + in 短语

be concerned in 与……有关
We had the people immediately concerned in the plot.
我们让故事情节与人们息息相关。

be disappointed in sth/sb 对（某人）感到失望
You should have accepted that. I'm disappointed in you.
你本应该接受那个的，我对你很失望。

I'm disappointed in her.
我对她感到失望。

Once again he was disappointed in love.
他又一次失恋了。

be engaged in 从事于，忙于
He is engaged in scientific research.
他从事科研工作。

The soldiers were engaged in a military operation close to the Ugandan border. 这些士兵参加了乌干达边境附近的一次军事行动。

be experienced in 在……方面有经验
The Chief Executive should be experienced in business administration.
总经理应有企业管理经验。

A sensation of burning or tingling may be experienced in the hands.
双手可能会有种刺痛感或灼热感。

be expert in sth/doing sth 在……方面是行家
They are all expert in this field.
他们都是这个领域的行家。

be fortunate in (having) 在……方面幸运
I was fortunate in having a good teacher.
我很幸运，有位好老师。

We are fortunate in living in such a big city.
我们住在这么大的城市里真幸运。

You can well count yourself fortunate in having such a good wife.
你有这样一位贤内助，可算得（上）幸福了。

be interested in 对……感兴趣
People are not interested in movies anymore.
人们不再对电影感兴趣了。

Anyone interested in joining the club should contact us at the address below.
有意加入俱乐部者请按下面的地址和我们联系。

be rich in 富于，在……方面富有
Oranges are rich in vitamin C.
橘子含有丰富的维生素C。

The area is rich in wildlife.
这个地区的野生动植物很多。

be successful in 在……方面成功
They were successful in winning the contract.
他们终于争取到了那份合同。

You will be successful in whatever you do and you will have a very full and interesting life. 你不管做什么都会成功，并且会过着非常充实有趣的生活。

be weak in 在……方面不行
He's been weak in health since childhood.
他起小儿身体就不好。

I was always weak in the science subjects.
我总是学不好理科。