During his long stay in hospital, he kept up with work, using his spare time to study.

在漫长的住院期间，他利用休闲时间坚持学习。

youdao

The Reid Flying Submarine (RFS-1) was a true mongrel, constructed by Reid in his spare time using leftover parts from other aircraft and, like Ushakov's design, it was a floatplane.

“雷德飞潜艇”（RFS-1）是典型的混血儿，它是雷德在业余时间里用其他飞机的零碎部件拼凑成的，正如尤沙科夫的设想一样，它是一架浮力飞行器。

youdao

It was his plan that by using the money he "earned", he could rent a small shop in his hometown and kept on writing in his spare time.

他计划用他挣到的钱在他的家乡租一个小商店，然后利用业余时间继续写作。

youdao

He bought the 7-inch Google Nexus tablet in December, and now finds himself using his laptop less and his tablet more, especially for personal work, including the novels he writes in his spare time.

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