"express trains don't stop at Princeton Junction"
"a string of islands"
"train of mourners"
"a train of thought"
"we were part of a caravan of almost a thousand camels"
"they joined the wagon train for safety"
"it led to a train of disasters"
"the bride's train was carried by her two young nephews"
"the fool got his tie caught in the geartrain"
"The old master is training world-class violinists"
"we develop the leaders for the future"
"She is training to be a teacher"
"He trained as a legal aid"
"Parents must discipline their children"
"Is this dog trained?"
"He is grooming his son to become his successor"
"The prince was prepared to become King one day"
"They trained him to be a warrior"
"Cultivate your musical taste"
"Train your tastebuds"
"She is well schooled in poetry"
"Please don't aim at your little brother!"
"He trained his gun on the burglar"
"Don't train your camera on the women"
"Take a swipe at one's opponent"
"He is training our Olympic team"
"She is coaching the crew"
"She is training for the Olympics"
"train the vine"
"They railed from Rome to Venice"
"She trained to Hamburg"
"The toddler was trailing his pants"
"She trained her long scarf behind her"
constrain vt. 强迫;强使;限制;约束;
detrain vt. （使）下火车;
distrain vi. 扣押（人、财物等）;
entrain v. 使乘火车;拖;产生;
eyestrain n. 眼睛疲劳;眼过劳;
overstrain v. 使过度紧张，使工作过度，过度紧张; n. 过度紧张，过劳;
overtrain v. （使）训练过度;
quatrain n. 四行诗;
restrain vt. 抑制，压抑;限定，限制;制止;监禁;
retrain vt. 重新教育，再教育;
seatrain n. 火车渡船，海上运输队;
strain vt.& vi. 拉紧，拉伤;用力拉; n. 血统，家族;性格，脾气;语气;一段音乐; vt. 拉紧，拽紧或扯紧;尽量使力;扭伤;歪曲; vi. 不懈;受到强大的压力;拉紧，紧绷;
trainband n. 民兵队;
trainbearer n. （婚礼或其他礼仪中新娘等身后的）拉衣裙者，（北美产的）长尾蜂鸟;
trainee n. 受训练的人[动物];新兵;练习生，实习生;
trainer n. 运动鞋;教员;驯兽师;
training n. 训练;培养;（枪炮，摄影机等的）瞄准;整枝法; v. 训练，培养( train的现在分词);教育;瞄准;整枝;
trainload n. 列车载重，列车载客[载货]量;
trainman n. 车车务员，乘务员;
following train 后行列车，后续列车;
engineering train 工程列车;
train momentum 列车动能;
train regulation 列车调整;
named train 有标名的列车;
combat train 战斗列车;
relay train 中转列车;
owl train n. 夜间行驶的火车;
boat train n. 配合船班次载运船客的火车;
sheet train 挤片生产线;
train pulse 序列脉冲;
bit train 位列;
empties train 空列车;
accommodation train n. <美>（各站或几乎各站都停的）普通旅客列车;
train printer 列（车）式打印机;
mill train 轧机机组;
coal train 煤炭列车;
train-mile n. 列车行驶英里（用作计算票价单位）;