bǐrú "míngtiān shàngwǔ xūyào tíjiāo hétong biānhào, yīncǐ qǐng jīntiān liù diǎn qián quèrèn"

比如“明天上午需要提交合同编号，因此请今天六点前确认”。

For example: "The contract number needs to be submitted tomorrow morning, so please confirm by 6 PM today."