由
설명
介词“由”用于引出动作的起点（时间或处所），表示“从……开始/出发”，相当于“从”。
The preposition '由' is used to indicate the starting point (time or place) of an action, meaning 'starting from' or 'from', similar to '从'.
예문
这路公交车由北京机场出发。
This bus route departs from Beijing Airport.
我们由南门进入公园。
We entered the park through the South Gate.
관련 문법
自从HSK 3三21
词类 · 引出时间、处所
自从是介词，用于引出某个动作或状态开始的时间点，通常与“就”搭配使用，表示从该时间点开始某种情况持续发生。
Since is a preposition used to indicate the starting point of an action or state, often paired with '就' to show that a situation has continued from that time onward.
예문 (2)
自从修了公路，这儿的交通就方便多了。
Since the highway was built, transportation here has become much more convenient.
自从来到中国，他就喜欢上了中国菜。
Since coming to China, he has fallen in love with Chinese cuisine.