空气,无论是气态的或是液态的,都是一种流体.Air whether in the gaseous or liquid state is a fluid.流体包括气体和液体.Fluid includes both gasses and liquids.水既是流体又是液体.Water is both a fluid and a liquid....
他做事闷声不响，小心谨慎，有点死气沉沉的。He was quiet, conscientious, a bit of a plodder.科恩被人们认为做事太不计后果。The rap against Conn was that he was far too reckless.主管叫我到楼下。他做事干练、务实。The Chief summoned me downstairs. He was brisk and businesslike....