When you lose, do not kick yourself but write a good note on that trade, go back to review past trades, and think how to avoid such losses in the future.
当你亏钱的时候，不必自责，但你要写上自己的总结，复习过去的交易，并思考以后如何避免这样的亏损。
If the guest can not sign, write down "NP" on the back of the bill, and ask cashier to prepare the change. Give the guest change if necessary when the guest pay.
假如客人不能签单，在帐单背面写上“NP”，并叫收银员备好所需的零钱，根据情况给客人找钱。
Using the DDX mechanism means that you do not have to write the code to transfer data back and forth yourself.
使用DDX机制意味着不必自己编写来回传输数据的代码。
Using the DDX mechanism means that you do not have to write the code to transfer data back and forth yourself.
使用DDX机制意味着不必自己编写来回传输数据的代码。
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