train: [14] A train is etymologically something that is ‘pulled’ along. The word was borrowed from Old French train, a derivative of the verb trahiner ‘drag’. And this in turn went back to Vulgar Latin *tragināre, a derivative of Latin *tragere, a variant of trahere ‘pull’. It was first used in English for ‘delay’, from the notion of being ‘pulled’ back, and ‘part of a garment that trails behind’ dates from the 15th century.
When steam locomotives pulling carriages were introduced in the 1820s, the combined vehicle was called a train of carriages; the simple term train is first recorded in 1835. The use of the verb train for ‘instruct, school’, which dates from the 16th century, evolved from an earlier ‘direct the course of growth of a plant’, which in turn went back to the original notion of ‘pulling’. => tractor
train (n.)
early 14c., "a drawing out, delay;" late 14c., "trailing part of a skirt, gown, or cloak;" also "retinue, procession," from Old French train "tracks, path, trail (of a rome or gown); act of dragging," from trainer "to pull, drag, draw," from Vulgar Latin *traginare, extended from *tragere "to pull," back-formation from tractus, past participle of Latin trahere "to pull, draw" (see tract (n.1)).,
General sense of "series, progression, succession, continuous course" is from late 15c. Train of thought first attested 1650s. The railroad sense "locomotive and the cars coupled to it" is recorded from 1820 (publication year, dated 1816), from notion of a "train" of wagons or carriages pulled by a mechanical engine.
train (v.)
"to discipline, teach, bring to a desired state by means of instruction," 1540s, probably from earlier sense of "draw out and manipulate in order to bring to a desired form" (late 14c.), specifically of the growth of branches, vines, etc. from mid-15c.; from train (n.). Sense of "point or aim" (a firearm, etc.) is from 1841. Sense of "fit oneself for a performance by a regimen or exercise" is from 1832. The meaning "to travel by railway" is recorded from 1856. Related: Trained; training.
中文解释
1. trah-(tract-) => train.
实用例句
1. In 1941, the train would have been pulled by a steam engine.
1941年，火车本可以由蒸汽机车拉动。
来自柯林斯例句
2. He lost a foot when he was struck by a train.
他给火车撞伤，失去了一只脚。
来自柯林斯例句
3. Businesses need to train their workers better, and spend more on R&D.
各企业需要更好地培训工人，并且在研发方面加大投入。
来自柯林斯例句
4. The train backed out of Adelaide Yard on to the Dublin-Belfast line.
火车倒出了阿德莱德调车场，开上了都柏林-贝尔法斯特线。
来自柯林斯例句
5. He rode on the president's luxury train through his own state.
