trainn.列车;火车;行列;一系列vt.训练;培训;瞄准vi.进行锻炼,接收训练;练习
train axis转动轴
train finevi.把锻炼得处于良好状态
train crew火车乘务员
train downvi.从事锻炼使体重减轻
train path列车运行线
Train wind列车风
train load列车载重
train stop止车器
train case火车旅行箱
"a trained mind"
"trained pigeons"
"well-trained servants"