生意场上，不动声色会非常有用。In business a poker face can be very useful.有很多特效的时候，高清电视就格外有用了。HDTV is especially useful if there are a lot of special effects.小剂量的止痛药对于降低体温非常有用。Pain-killers are very useful in small amounts to bring your...
A Boeing 737 came down on the M1 motorway.一架波音737降落在1号高速公路上。I'm sure Ted is tootling down the motorway at this very moment.我确信泰德此刻正悠闲自得地开车行驶在高速路上。Horrified commuters saw the lorry veer across the motorway and overtu...
He was arrested on unspecified charges.他遭到逮捕，但未透露具体罪名。The story takes place at an unspecified date.故事发生的日期不明。According to this scheme, radicals Rc are generated by some unspecified means.按照这一图式, 自由基Rc是由某些未详细说明的方法产生的....