check up on

英 [tʃek ʌp ɒn]

美 [tʃek ʌp ɑːn]

查清某人来历

英英释义

verb

• examine so as to determine accuracy, quality, or condition
  1. check the brakes
  2. Check out the engine
  Synonym:checklook intocheck outsuss outcheck overgo overcheck into

双语例句