be experienced at doing sth
be successful in (doing) sth.be successful at (doing) sth.
造句 be good at doing sth
we will be looking at doing sth...
be good at doing sth 等于
1.be good at sth /doing sth都可以把?
例如:want to do sth.need doing sth.be surprised at doing sth.之
请问be aimed at doing sth.和aim at doing sth.有什么区别?
辨析:aim at doing sth.和be aimed at doing sth.
造句:be bad at sth be busy doing be busy with sth be excited a
be good at to do sth 还是 be good at doing sth
be good at doing sth.和be good at sth.区别
be good at sth和be good at doing sth意思一样吗