善于的英文：
be good at
be adept in

参考例句：

The girl is skillful at figure skating.
这姑娘善于花样滑冰。

He is good at playing puppet.
他善于玩木偶。

the quality of affording easy familiarity and sociability.
容易亲近善于交际的性质。

With your head for figures, you should go in for accountancy.
既然你善于计算，就应从事会计工作。

He's so good at speaking to a large crowd that he never gets the slightest stage fright
他善于在众人面前演讲,而且也从不怯场

I think I'm good at sussing out what's going on(Ry Cooder)
我想我很善于发现进展中的事物(里·库德)

A good traveler can accustom himself to almost any kind of food.
一个善于旅行的人几乎能习惯任何一种食物。

The leading actor is expert at conveying his role 's fine feeling.
这位男主角善于表现他的角色的细腻感情。

Granted, the Japanese cars have presented some logistical problems, but Americans are an inventive people.
当然了，像日本式的汽车会产生一些体积小的问题，但美国人是些善于发明创造的人。

There was nothing in them(the papers), and yet there was much in them for those skilled in reading between the lines…
报上没有什么重要的消息，可是对那班善于从字里行间看出言外之意的人说来，报上消息多是…

good是什么意思：
adj. 好的；令人满意的；愉快的；仁慈的
n. 好处；利益；有道德的人或事
adv. 好

A good appetite is a good sauce
饥不择食

The prompt goods have good qualities.
当场付款的物品质量不错。

Be not simply good; be good for something.
不要单纯做个好人，还要做个能派上用场的人。

Have a good mind
很想…

Good gracious, no!
天哪，不！

adept是什么意思：
adj. 熟练的；擅长的
n. 内行；能手

He is an adept mechanic.
他是个熟练的机械师。

He is an adept guitar player.
他是个吉他高手。

He was adept at maintaining a psychological advantage.
他是善于保持一种心理上的优势的。

He was adept at maintaining a psychological advantage.
他是善于保持一种心理上的优势的。

Mr. Slope was esteemed an adept at letter writing.
斯洛普先生被推崇为写信的能手。