相关单词近义词 check up on 检查, check into 深入调查, check out 退房结帐, check 检查, go over 检查, look into 调查临近词checkup, check, check the figures, Check up polarity, check list system, check-valve cap, check computation, check up on sb., check the luggage, check card holder, check-out stand, check-up system 返回 check over