将下面这个句子翻译成英文并给出语法分析。

他昨天跑步锻炼一个小时，然后在家做瑜伽放松了一下。
Translation: He exercised by running for an hour yesterday, and then relaxed by doing yoga at home.

Grammar Analysis:
他 (Him/He) 昨天 (Yesterday) 跑步 (ran) 锻炼 (exercised) 一个小时 (for an hour)，然后 (and then) 在家 (at home) 做瑜伽 (did yoga) 放松了一下 (relaxed for a while).