begin=commence(开始)
bid=attempt(努力)
bilk=cheat(欺骗)
bolt=desert or abandon(放弃)
boost=increase(增加,提高)
check=examine(检查)
claim=ause the death of…(夺去……的生命)
clash=disagree strong1y(发生分歧,争议)
curb=control or restrict(控制)
dip=decIlne or decrease(下降)