Gb	Eng
平常的地下火车接近车站时，发出的声音可能是最大声的喷射机的两倍。	An ordinary subway train, approaching the station, can be twice as loud as the loudest jet.
喷射机的黑色轮廓在雾中隐隐显现。	The dark outline of a jet loomed through the mist.