每位客人只可购买一对，重复下单会被取消。
Only one pair per customer. Multiple orders will be cancelled.
客户这个选项里面你可以查看交易，退款状态，和重复下单的取消订单。
With the Customers section you can lookup transactions, perform refunds and recurring billing cancellation.
在厂房中，机器人已经开始进行产品装配和打包的重复工作，而在食品服务业，一些餐厅正在测试自助下单，甚至采用机器人侍者。
Robots on factory floors already do repetitive rote tasks such as product assembly and packaging, while in food service, some restaurants are testing self-service ordering or even robotic servers.
听写者写下单词，如有需要，可以要求朗读者重复朗读单词。
The listeners write the words down and may ask for the word to be repeated several times, if necessary.
听写者写下单词，如有需要，可以要求朗读者重复朗读单词。
The listeners write the words down and may ask for the word to be repeated several times, if necessary.
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