Use this clause if the table must be up and available at any time.

如果该表在任何时刻都必须是可用的，那么应该使用该子句。

youdao

Before is adverbial clause of time, I think.

时间状语从句，我打错了。

youdao

Before is adverbial clause of time, I think.

时间状语从句，我打错了。

youdao