我在经理回来之前代行他的职务。

I'm acting as deputy till the manager returns.

《牛津词典》

他一回来就有一封信在等着他看。

There was a letter waiting for him on his return.

《牛津词典》

在爷爷回来之前，彼得带着他所有的山羊跑到小屋。

Before the grandfather had returned, Peter came racing down to the hut with all his goats.

youdao

Welles heard that obviously, and he quickly came back. But when she died, he stopped taking lessons, before that, he was adept before he was ten years old.

威尔斯当然听到了，所以他,很快回来了，但在,他母亲去世之后，他就不再上课了，在这之前，在他十岁的时候他就对乐器很熟练了。

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