lam
noun /læm/
  /læm/
词源noun late 19th cent.: from lam ‘hit hard’.
Idioms Idioms 
on the lam 
- (North American English, informal) escaping from somebody, especially from the police在逃,逃匿(尤指逃避警方追缉) - He was recaptured after four months on the lam.逃亡四个月后,他被重新抓获。 
 
- He was recaptured after four months on the lam.