词汇	sad apple
释义	sad apple n.讨厌的家伙;悲观分子
随便看	train radio communication train radio communication system train radio dispatching system train radiophone train radio system train radio telephon train radio telephone train radio telephone, inductive train radio telephony train/rail fares train rails train rate imaging train ready to start train ready to start cancel train ready to start plunger train rear end air pressure feedback train rear end protection train reassembly yard train received train receiving route train reception and departure train register train regularly to keep fit train regulation train regulator audio panel