he will sail from Portsmouth .he is _Portsmouth now..A to.B from.C on.D.at

问题描述:

he will sail from Portsmouth .he is _Portsmouth now..A to.B from.C on.D.at

D请你解释一下,谢谢他会从Portsmoun扬帆启程,他现在在Portsmoun 。表示在的介词这里只能选at