be good at意思：
v. 擅长; 健; 精通; 熟谙;
造句：
1，A teacher should be good at drawing inferences about other cases from one instance.
老师要善于举一反三。
2，You have to be good at spotting trouble on the way and heading it off.
你必须善于发现潜在的麻烦并加以化解。

A
teacher
should
bcIGFgpkzSRe
good
at
drawing
inferences
about
other
cases
from
one
instance.
老www.souquanme.com师要善于举一反三.
But
you
had
to
be
good
at
math.
但是你数学一定很好.
I
am
good
at
English
为你解答，敬请采纳，
如果本题还有疑问请追问，Good
luck!

I am good at playing football.我擅长踢足球.
Tony is good at singing English songs.托尼擅长唱英文歌
希望能帮助到到你!

be good at表示擅长
A good listener must be good at asking questions//www.souquanme.com.
一个好的聆听者应该善于问问题.
I am good at English.
我擅长英语.
He iwww.souquanme.coms good at playing table tennis.
他擅长打乒乓球.