Change the filter cartridge as often as instructed by the manufacturer.按照生产厂家的使用说明，经常更换过滤筒。This rifle only holds one cartridge.这支来复枪只能装一发子弹.He was attacked by a security man who tried to wrest away a gas cartridge.他遭到一名保...
这家航空公司亏损达3,500万美元，而澳航出资帮助其摆脱了困境。The airline had losses of $35m and was bailed out by Qantas.你不得不承认，你事实上是陷入了困境。You have to admit that you are, in fact, in difficulties.该国的经济困境阻碍了其科研机构的工作进展。The country's economic plig...