escalator例句 在 行人路權越來越受到提升 - Facebook 的評價 例句 ：Use of pedestrian walkway requires special caution, ... 例句：I'll meet you by the down escalator on the second floor. ... <看更多>
escalator例句 在 How does an Escalator work? - YouTube 的評價 We use it all the time but most people have never actually seen the inner workings of an escalator ! Summary: I've animated the inside to ... ... <看更多>
