[yóu]
[名]
（原由） cause; reason
reason
理由
cause
原由
（姓氏） a surname
You Yu
由余
[動]
（經過） pass through
the road one must follow or take; the only way
必由之路
（順隨； 聽從） follow; obey
Things are beyond one's control.
事不由己。
Let her do as she pleases.
由她去吧。
[介]
（由于） because of; due to
have only oneself to blame
咎由自取
Mistakes due to carelessness may have serious consequences.
由粗心大意造成的錯誤有可能帶來嚴重的后果。
（通過） by; through
be elected after democratic consultation
由民主協商選舉產生
be recommended by the masses
由群眾推薦
Did you come by the nearest road?
你是由最近的路來的嗎?
We came by the fields, not by the roads.
我們由田間而來， 不是由大路而來。
This way in.; Entrance.
由此入內。
（表示某事歸某人去做） by
All the travelling expenses will be borne by the host country.
旅費由東道國負擔。
Your side will be held responsible for all the consequences arising therefrom.
由此產生的一切后果由你方負責。
It's up to him to resolve this problem.
這個問題應由他來解決。
（表示起點） from
set off from Dalian
由大連出發
spread over a whole area from one point
由點到面
The wild geese fly from north to south.
大雁由北向南飛。
We watched the mists ascending from the valley.
我們看著迷霧由山谷升起。