名詞 locomotive:

1. a wheeled vehicle consisting of a self-propelled engine that is used to draw trains along railway tracks
   同義詞：engine, locomotive engine, railway locomotive

形容詞 locomotive:

1. of or relating to locomotion
   同義詞：locomotor

1. A noisy puffing or explosive sound, such as one made by a locomotive.
   噗噗聲一種嘈雜的噗噗或爆炸聲，比如火車頭發(fā)出的聲音
2. How many coaches can that locomotive pull?
   那個火車頭能拉多少節(jié)車廂?
3. He is a locomotive engineer.
   他是一名火車司機。
4. The steam locomotives were superseded by diesel units.
   蒸汽機車已被柴油內(nèi)燃機車所取代。

lo.co.mo.tive

n.（名詞）
A self-propelled vehicle, usually electric or diesel-powered, for pulling or pushing freight or passenger cars on railroad tracks.
機車：一種自行推進的車輛，通常用電力或內(nèi)燃機作動力，用于推或拉鐵軌上的貨車或客車
A driving or pulling force; an impetus:
動力：驅(qū)策力或拉力；推動力：
例句：
.The US could no longer serve as the locomotive for the world economy.(George Soros)
.美國再也無力承擔(dān)世界經(jīng)濟推動力的重任了.(喬治·索羅斯)

adj.（形容詞）

Of, relating to, or involved in locomotion.
運動的：四處移動的、與之相關(guān)的或參與其中的
Serving to put into motion or propel forward:
推動的：用于使運動或向前推進：
例句：
.It may be that the founding fathers overestimated the locomotive force of the collective and mutual self-interest.(Ian Davidson)
.開國功勛們可能過高地估計了集體的和相互的個人利益所能起的推動作用.(伊安·戴維森)

Able to move independently from place to place.
機動的：能獨立地從一地移動到一地的
Of or relating to a self-propelled locomotive.
自行推進的：自行推進的機車的或與之相關(guān)的
Of or relating to travel.
旅行的：旅行的或與旅行相關(guān)的

來源：
Latin locô [from a place] [ablative of] locus [place]
拉丁語 locô [從一個地方] [] locus的奪格 [地方]
Medieval Latin môtovus [causing motion] * see motive
中世紀(jì)拉丁語 môtovus [引起運動] *參見 motive