Trains

bullet train n. 子弹头列车（高速列车）; 弹速快车 trains command trains of thought trains of thoughts trains of thinking trains up train of thought [医] 思潮 train of thoughts train of thinking train up 培养,训练 gravy trains choo choo trains choo-choo trains steam trains (steam-train 的复数) 蒸汽机车牵引的列车 Dotto trains