窃喜chuckle to oneself 窃位素餐 usurp a high post without doing a stroke of work; hold a high position but do ..
2
?独自暗中地笑
... chuckhole 路坑 chuckle to oneself 窃喜，独自暗中地笑 chuckle 吃吃笑 ...
3
?哑然失笑
哑然失笑 can't help laughing; break into laughter; chuckle to oneself; can't suppress one's laugh; be unable to swallow a laugh; laugh involuntarily; unable to stifle a laugh..