Precedency
n. 領先, 上席
??? 情景例句
The smog in L.A. is caused by air pollution and water vapor.
洛杉磯的煙霧是由空氣污染和水蒸氣造成的。
To smoke a cigarette
吸煙
The ship is going under the bridge.
那船正從橋下駛過。