1.valid in…for negotiation until… 在……议付至……止
2.draft(s) must be presented to the negotiating(or drawee)bank not later than… 汇票不得迟于……交议付行（受票行）
3.expiry date for presention of documents… 交单满期日
4.draft(s) must be negotiated not later than… 汇票要不迟于……议付
5.this l/c is valid for negotiation in china (or your port) until 15th, july 1977 本证于1977年7月15日止在中国议付