“报关员资格证书”“国际商务单证员”用英语怎么说？要准确点的

报关员资格证书：Qualified Customs Clearance Officer with valid certificate
eg具有中国海关总署颁发的报关员资格证书。
Qualified Customs Clearance Officer with valid certificate issued by the Chinese
Customs Department
单证员：是一种资格称呼，需要加定语来定性，比如国际商务单证员，是指在国际贸易结算业务中,根据销售合约和信用证条款从事缮制、出具各种对外贸易结算单据和证书，交银行办理议付手续或委托银行进行收款等工作的持证人员。
Only evidence member it is appellation of a kind of qualification, need adds attribute to come qualitative, international commerce is for instance only card member, it is to point to in business of international trade settle accounts, make according to selling agreement and L/C clause to be engaged in copy, issue receipts of all sorts of foreign trade settle accounts and letter, hand in a bank to deal with the member that discuss what pay formalities or commend the work such as gathering of silver-colored advancing travel to hold a witness.