Dynamoelectric walk implement travelling speed has 10 kilometre / hour the following, 15 kilometre / hour, 20 kilometre / the hour a few kinds.是什么意思_Dynamoelectric walk implement travelling speed has 10 kilometre / hour the following, 15 kilometre / hour, 20 kilometre / the hour a few kinds.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句