煤气管道已被关闭,以防漏气.The gas pipe has been blocked off to prevent escapes.这会造成漏气，破坏罐子的密封性。This would permit air to enter, breaking the hermetic seal of the jar.如果煤气管漏气, 你必须关闭送气管, 因为那很危险.If the gas blows back , you must turn off...
Harrison Blackwood teams up with microbiologist Suzanne McCullough, computer programmer Norton Drake, and army Lt.他们不饮不食,也不会消化,靠把捕获的地球人的血液直接注入血管而生存.I brought in one drake and three ducks.我弄来一只公鸭和三只母鸭。Shakespeare and Milt...
They petitioned the mayor to take immediate measures.他们陈情市长立即采取措施.Parents petitioned the school to review its admission policy.家长请愿恳求学校修订招生政策。He petitioned for a retrial in camera.他请求不公开重新审理此案.Local residents have succes...