Although his degree than somebody else is so high, but I love learning, now still in use in spare time, hope oneself can step by step to college.

虽然说自己的学历不如人家那么高，但是我很爱学习，现在仍然在利用业余时间上大专，希望自己可以一步步的上升。

youdao

He spends his spare time (in) learning English.

他业余时间学英语。

youdao

All his spare time has been devoted to learning English over the radio.

他所有的业余时间都花在通过收音机学习英语上了。

youdao

"I gave up sports so I could spend more of my spare time at the computer learning about programming, " he said in his testimony to the Senate Judicial Committee.

BBC: The man behind Napster