be experienced at/in的区别

be experienced in和be experienced at有什么区别? be experienced in和be experienced at有什么区别? be experienced at/in的区别 be talented in还是at 我们老师说和experienced的用法一样be experienced in doing sth是吧? 我在参考书看的是be experienced in+doing sth,be experienced at+sth,但是在老师发的一个教案上是be experienced in+sth,请问怎么回事 be experienced at doing sth有这个词组吗 be experienced in sth和have experience in sth区别 be skilled at or in? be clever in 还是 at be in/at 的区别 It seems that he was succeeded at last in the USA.---But you can never imagine ________A.what a hard life he has experienced.B.what he has experienced a hard life C.he has experienced what a hard life.D.what a hard life has he experienced be back in be back at 区别 be well in和be good at be talent at还是be tallent in 为什么be in=be at home be weak in 和be weak at Mary is ________ website design than John.A.more experienced of B.less experienced at C.experienced for be expert at与be good at,be expert in与be good in,