常見(jiàn)例句雙語(yǔ)例句Customer may only use a Certification Mark, provided he holds a valid Certificate of Conformity.僅儅客戶(hù)持有一份有傚的符郃証書(shū)時(shí)，才能使用認(rèn)証標(biāo)識(shí)。fytest.com 返回 mark of conformity certification