unattended stand-by time

• [计] 非工作时间； 空闲时间

unattended stand-by time的用法和样例：

例句

1. He has nothing to do in his spare time.
   他空闲时间无事可做。
2. Then all additional spare time is so many bonuses.
   这样所有其它的空闲时间就都是额外收获了。