他正忙着铺草皮。用英语怎么说？

他正忙着铺草皮。

He was busy laying turf.

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

was

v. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质（ be的过去式 ），在，存在，不受干扰；

例句
There was a terrible sadness in her eyes...
她眼神中流露出深深的悲伤。

busy

adj. 忙碌的，占线，繁华的，爱管闲事的；vt. 忙着做某事，使奔走，使经营；n. 〈英俚〉侦探，包打听；

例句
When not producing art of his own, Oliver was busy advancing the work of others.
奥利弗在不搞自己的艺术创作时，就会忙着帮助别人完成作品。

laying

n. 产卵数，瞄准；v. 打赌( lay的现在分词 )，提出，放置，铺；

例句
The caterers were already laying out the tables for lunch.
负责餐饮的人已经在为午餐摆桌了。

turf

n. 草皮，泥炭，<非正>地盘，势力范围，赛马场，跑马场；vt. 用草皮覆盖，<英><口>抛出，扔掉，赶走；

例句
A herd of goats was nibbling the turf around the base of the tower...
一群山羊在啃塔基四周的草皮。