Sideliner
n. 不参与活动的人, 置身于活动之外的人; 局外人；旁观者
🗣️ 情景例句
Don't jump the gun.
别轻举妄动。
A fox may grow grey, but never good.
狐狸会变，但本性难移。
Before they were replaced by steamships,
在蒸汽船取代帆船之前。