不时检查那匹马的心脏和肺。Every so often the horse's heart and lungs are checked.为安全起见，千万别站在马的正后方。For safety'ssake, never stand directly behind a horse.马的身体构造the anatomy of the horse...
Average earnings for unskilled workers are decreasing now.非熟练工人的平均工资现今正在降低。The unskilled section of the working class was diminishing as a proportion of the workforce.劳动力中非熟练工人的人数正在减少.an unskilled worker非熟练工人Most of thos...