他忙于他的工作并且过得非常快乐。

He engaged in his work and he enjoyed himself very much.

youdao

他独自一人住在沙漠的房子里，忙于他的研究工作，感到孤独。

Alone in a desert house, he was so busy with his research work that he felt nothing but lonely.

youdao

艾米的父亲是一名工程师，他每天都忙于他的工作。

Amy's father is an engineer and he is busy with his work everyday.

youdao

他总是忙于他的工作。

He was always busy with his work.

youdao

当他忙于工作时，他对周围的世界就没有了感觉。

When he is busy working, he is lost to the world around him.

youdao

当他忙于工作时，他对周围的世界就没有了感觉。

When he is busy working, he is lost to the world around him.

youdao