[kǔ]
[形]
（像膽汁或黃連的味道） bitter
This medicine tastes very bitter.
這藥苦極了。
（難受的； 痛苦的） painful; hard
distressed looks; have a worried look
愁眉苦臉
[方] （除去得太多； 損耗太過） (cut off) too much
trim one's nails too short
指甲剪得太苦
The trees are overpruned.
樹枝修得太苦了。
[名]
（難受； 痛苦） hardship; suffering; pain
bear [fear] hardship
吃 [怕]苦
be born in misery but brought up in happiness
苦里生， 甜里長
air one's sufferings
訴苦
He went through all kinds of hardships in the old society.
他在舊社會受盡了苦。
（姓氏） a surname
Ku Zhuo
苦灼
[動]
（使痛苦； 使難受） cause sb. suffering; give sb. a hard time
This matter really gave him a hard time.
這事可苦了他了。
（苦于） suffer from; be troubled by
suffer from drought
苦旱
[副]
（有耐心地； 盡力地） painstakingly; doing one's utmost
study hard
苦讀
try hard to ask sb. to stay
苦留
earnestly advise [exhort]
苦勸
study and train hard
勤學苦練