Officials type each passport number into a computer.

官员们把每份护照的号码输入一台电脑。

May I have your passport number?

请把护照号码告诉我好吗？

What's your passport number?

你的护照号码是多少？

Clerk: What's your passport number?

您的护照号码是多少？

I don't remember my passport number.

我忘了护照上的号码。