We kept walking and one of them came towards us, stopping smoothly at the end of aisle.

我们继续向前参观，一个机器人向我们走来，在过道的一端平稳的停下来。

youdao

We kept walking and one of them came towards us, stopping smoothly at the end of aisle.

我们继续向前参观，一个机器人向我们走来，在过道的一端平稳的停下来。

youdao