1、The medicine may cause drowsiness or somnolence, so do not operate heavy machinery after taking it.
这种药可能会导致嗜睡或昏睡，所以在服药后不要操作重型机械。
2、I struggle with somnolence during the daytime, no matter how much sleep I get at night.
无论晚上我睡得多少，白天我都很困倦。