be weak at 还是be weak in 是不是两个都可以(老师好象讲过的),如果2选1,选哪个好?

be weak at对,还是be weak in对?be weak at对,还是be weak in对? be weak in 和be weak at do weak in 还是 be weak in? be good at的反义词是be weak/bad at还是 be weak/bad in be good at 的反义短语是什么?要用到weak是be weak in还是at? be weak 有这个短语吗?be weak at be weak at与be weak in的区别是什么? be weak/poor at/in是什么意思 be weak at 还是be weak in 是不是两个都可以(老师好象讲过的),如果2选1,选哪个好? He used to be weak. Weak forms fo be是什么意思 be weak in; be weak at 这两个有什么区别?有人说be weak in 后面跟某科目,但是牛津高阶有一例句：Her school report shows that she is weak at/in arithmetic and biology. Do not be afraid to be weak. be weak in 后动词加ing? Be weak in getting on weii 英语中有be weak at这个词吗?只听过be weak in(老师也是这么讲的,请名师高者解答,急用! 用这些造一个句：be weak in/at ,give sb so weak at与weak in的区别