客人上下车时为客人开、关车门。
Opens and closes car doors for guests whenever the opportunity arises.
上下车时，请留意列车与站台之间的间隙。
While boarding or alighting the train, please mind the gap between the train and platform.
上下车时，请留意列车与站台之间的间隙。
While boarding or alighting the train, please mind the gap between the train and platform.
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