Before
until 区别① 如果主句(或简单句)中的谓语动词为延续性动词的肯定式,用until或before均可,但在意义上有一定的差别。如: She lived in the houseuntil he came back. 她在那所房子里一直住到他回来。(强调“到此为止”) She lived in thehouse before he came back. 在他回来之前,她一直住在那所房子里。(强调“在……之前”) ② 如果主句(或简单句)中的谓语动词为非延续性动词的否定式,用until或before均可,且意义上没有差别。如: The moon will notcome out until / before th...