山东指纹锁
到底 on earth 你到底怎么回事?What on earth is the matter with you? 终于 at last 我至于发现原因了.I know the reason at last. 其实 in fact; actually 这件事其实是我做的.In fact,this is done by me. on earth一般用于句中 at last 一般用于句首或句末 in fact和actually一般用于句首
好运大鸟
what's going on? 发生什么了？What's the matter? 怎么回事？What's wrong? 有什么问题？What happened? 发生什么事了？How is it doing(going)? 情况怎么样？
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