先看一遍，文教授/專家好象說過會給你看的。
A locomotive has to be added fuel, such as coal, firewood, or other flammable substance, consuming which may provide motion or energy for the machine.
可能是我少見多怪，定語從句的連詞前隻用介詞而不用分詞？
為什麽不先原文那樣分為兩句？
你說的很對。
這句話我在想如果隻用一句話該怎樣表達呢？很困惑。希望文青大師能幫助解決。
The body of an animal also needs fuel supplementation being called food, which may provide energy to the animal.
may is not needed?
accepted
In order to ignite the flammable substance and oxidize the food in the animal body, oxygen is essential.
ignite --> burn or combust.
accepted
The locomotive is composed of special parts: the hearth to accept and ignite the flammable substance, the pipe to transport steam, the wheel to make the locomotive move on, and the chimney to exhaust gas.
hearth ?
查的字典：爐膛。newton也用了這個詞。
gas --> waste gas
accepted
While the animal body is also composed of different parts: gastrointestinal tract to ingest and absorb food, the emunctory organ to evacuate waste, the arteries and veins to transport oxygen and store nutriment, and the legs and wings to move on.
the legs and wings to move on 沒有翻出原意：使動物行進的腿或翅膀
accepted。主要是不會接著怎麽用不定式怎麽表達出來。and the legs and wings to move on the body of animal？
