“在公交车上”用In the bus还是On the bus?需结合语境和表达重点。常规场景首选On the bus,因公交车等大型公共交通有可供站立行走的空间,乘客状态接近“处于平台之上”,如“I met an old friend on the bus”,且“get on/off the bus”为固定搭配,隐含“搭乘”动态意义。In the bus则用于强调“内部封闭空间”或车内具体动作,如“She left her umbrella in the bus”,聚焦“公交车作为封闭容器”。关键规律:小...