foreign gas杂质气体foreignadj.外来的；外国的；异质的；不相符的foreign policy formulating外交决策foreign exchange liability外汇负债Foreign book department.这里是国外图书部。foreign offensive strategy国外攻略foreign literature studies外国文学批评foreign independent travel外国零星散客旅游Foreign object in the nose鼻子进异物Foreign document resources外文文献资源foreign hterature teaching外国文学教学foreign ministry spokesman外交部发言人