1.虱
2.(附于动,植物上的)小虫;寄生虫
3.〈美俚〉不受欢迎的人,卑鄙的人
1.捉虱子,除虱子
1.an unpleasant person
2.a small insect that lives on the bodies of animals and people
1.It's a pathetic effort. 7. She keep lousing up at work.
这是白费力气。7.她的工作不断出错。