traight Wire 忠实

kee a traight face 忍住不笑出来

traight slice 挠性立式堰板

traight credit 直接信用证

traight way valve 通行阀

traight cable tray 电缆桥架

traight back chair 直背椅

traight bill of lading 收货人抬头提单

traight letter of credit 简明信用证