-（像胆汁或黄连的味道）bitter:
Thismedicinetastesverybitter.这药苦极了。
-（难受的;痛苦的）painful;hard:
distressedlooks;haveaworriedlook愁眉苦脸
-（除去得太多;损耗太过）(cutoff)toomuch:
trimone'snailstooshort;指甲剪得太苦
Thetreesareoverpruned.树枝修得太苦了。
-（难受;痛苦）hardship;suffering;pain:
bear[fear]hardship;吃[怕]苦
beborninmiserybutbroughtupinhappiness;苦里生，甜里长
-（姓氏）asurname:
KuZhuo苦灼
-（使痛苦;使难受）causesb.suffering;givesb.ahardtime:
Thismatterreallygavehimahardtime.这事可苦了他了。
-（苦于）sufferfrom;betroubledby:
sufferfromdrought苦旱
-（有耐心地;尽力地）painstakingly;doingone'sutmost:
studyhard;苦读
tryhardtoasksb.tostay;苦留
