It can be charged using a 120, 208 or 240 volt electrical outlet, which takes hours, or from an external direct current line in about 45 minutes.是什么意思_It can be charged using a 120, 208 or 240 volt electrical outlet, which takes hours, or from an external direct current line in about 45 minutes.在线翻译_英语_读音_用法_例句