Extension 831, please. — Sorry, the line is busy.
请接831号分机。- - -对不起，线路忙。
I am Li Mai in Room 831. I'm leaving today. Can I pay my bill now?
我是831号房的李迈，今天要离店，现在可以结账吗？
If you use 6, 831 of them, as a Tesla sports car does, that time does tend to drag on.
如果像特斯拉跑车那样用上6831个锂离子蓄电池组电池所需时间就更长了。
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