He took a bath and shaved before dinner.

他在晚餐前洗了澡并刮了脸。

I took a bath in a bathtub for an hour.

我在浴缸里洗了一个小时的澡。

I took a bath before dinner.

我饭前洗了一个澡。

I took a bath immediately.

我马上洗了澡。

I took a bath yesterday.

昨天我洗了澡。