The waiter found a bank envelope while cleaning off a table last Saturday at restaurant.

上周六，这位服务员在餐厅清理桌子的时候发现一个银行信封。

Richardson said the robot can free up employees for other jobs like cleaning tables or taking food delivery orders.

理查森表示，这种机器人能让员工有时间去做其他工作，如打扫桌子或送餐。

These are typically complex actions, like cleaning a table, or performing a backflip that are difficult to transfer to a different problem.

这些典型的复杂动作，如清洁桌子或表演一个后空翻，是很难迁移到别的问题上的。