由

reason

from

it is for ... to

cause

because of

due to

to leave it (to sb)

per

由[yóu]

-（原由)cause;reason:
reason;理由
cause原由
-（姓氏)asurname:
YouYu由余
-（经过)passthrough:
theroadonemustfollowortake;theonlyway必由之路
-（顺随;听从)follow;obey:
Thingsarebeyondone'scontrol.事不由己。
Letherdoasshepleases.由她去吧。
-（由于)becauseof;dueto:
haveonlyoneselftoblame;咎由自取
Mistakesduetocarelessnessmayhaveseriousconsequences.由粗心大意造成的错误有可能带来严重的后果。
-（通过)by;through:
beelectedafterdemocraticconsultation;由民主协商选举产生
berecommendedbythemasses;由群众推荐
-（表示某事归某人去做)by:
Allthetravellingexpenseswillbebornebythehostcountry.旅费由东道国负担。
Yoursidewillbeheldresponsibleforalltheconsequencesarisingtherefrom.由此产生的一切后果由你方负责。
-（表示凭借）:
Wateriscomposedofhydrogenandoxygen.水由氢与氧化合而成。
Thiscollectionismadeupofthreepartspoems,essaysandshortstories.
-（表示起点)from:
setofffromDalian;由大连出发
spreadoverawholeareafromonepoint;由点到面

这些发动机是由蒸汽驱动的。
The engines are driven by steam.

我不完全理解他离开的理由。
I don't fully understand his reasons for leaving.

由于下雨，取消了比赛。
Owing to the rain, the match was cancelled.

自由的意志使我们可以选择自己的生活方式。
Free will makes us able to choose our way of life.

囚犯们希望重获自由。
The prisoners wish to be free again.

由车站走到这里只有十分钟的路程。
It is no more than ten minutes' walk from the station.

许多疾病是由细菌引起的。
Many diseases are caused by bacteria.

他的成功是由于勤勉和许多朋友的帮助。
He succeeded both because he was industrious and because he had many friends to help him.

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