in one's spare time同义句

in one's spare time同义句
in one's spare time同义句

in one's spare time同义句
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in one's spare time
= in one's free time
= when one is free/available
= when one has time
= when one isn't busy
在某人的空闲/空余时间
当某人不忙/有空的时候
注：/ 表示可以任意选用其一.
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在某人的课余时间，空闲时间

spare-----------free、pasttime