飞机的迎角是什么:benefit能加s吗，加s有什么规矩来着，我忘啦

该词可作为名词和动词使用，两个词性都可加s，但意义不同。As n. Do you know the benefits of the project? As V. He benefits from the project.因此其为可数名词，复数加s,做动词时，第三人称单数加s.

可以，是可数名词。只有可数名词复数才加s

可以加 s
可数名词都可以加s
个别的加es

benefit:

n. 利益
v. 获益

例句与用法:
1. Are you entitled to unemployment benefit?
你有资格领取失业救济金吗？

2. I have benefited a lot from extensive reading.
广泛的阅读使我受益匪浅。

3. This project is of great benefit to everyone.
这项工程对每个人都大有好处。

4. It was achieved with the benefit (ie help, aid) of modern technology.
借助现代技术, 这个目标已经达到.

5. The warning sign was put there for the benefit of the public.
那儿设立了警告牌以引起人们的警惕.

6. The new regulations will be of great benefit to us all.
新规章对我们大家都会大有好处.

7. Because of illness she didn't get much benefit from her stay abroad.
她待在国外因生病而未得到多大好处.

8. Who stands to (ie is likely to) benefit most by the new tax laws?
什麽人可能从新的税法中得到最大的好处?

英英解释:
名词benefit:

1. financial assistance in time of need

2. something that aids or promotes well-being
同义词：welfare

3. a performance to raise money for a charitable cause

动词benefit:

1. derive a benefit from
同义词：profit, gain

2. be beneficial for
同义词：do good