be good at

动词擅长; 健; 精通; 熟谙

I just want to be good at something.(我只是想有一项专长。)

The computers seem to be good at their new jobs.(计算机的新工作看上去做得不错。)

Learn to be good at thinking.(学会善于思考。)

Viruses tend to be good at surviving when a computer system crashes.(病毒往往在电脑系统瘫痪时仍然存在。)

This card might be good at some point.(这张牌在某些情况下可能很好。)

One should at least be good at something.(一个人至少要有一技之长。)

You have to try to be good at everything.(你必须试图做好所有的事情。)

I want to be good at playing the drums.(我想要精通打爵士鼓。)

So I think I will be good at this job.(所以我想我会做好这份工作。)

He is said to be good at oral English.(据说他擅长英语口语。)

1. 擅长：第3篇:我最喜欢的动物是企鹅(penguin),它不会飞翔,但是很擅长(be good at)游泳和潜水,它走路的模样很可爱. 除了这些之外,还有就是我喜欢的卡通影片:「企鹅家族」,影片中的可爱企鹅,用「企鹅语言」来沟通. 所以我最喜欢企鹅了!

2. 善于,擅长于：be generous with 用...很大方 | be good at 善于,擅长于 | be good to 对...好;对...很慈善

3. 擅长于：be full of 充满 (1lesson3) | be good at 擅长于(lesson9) | be hard of hearing 听力不好,耳背(lesson4)

4. 擅长;在......方面做得好：be full of 充满 | be good at 擅长;在......方面做得好 | be good for对......有益处