The immigration officer stamped my passport.

移民官员在我的护照上盖了戳.

You have to show your passport to the immigration officer.

你必须向移民官出示你的护照。

I linger in front of an immigration officer with a sycophantic look on my face.

我带着谄媚的表情在一间入境办公室门前徘徊着。

How are you? I am an immigration officer in Beijing Capital International Airport.

你好，我是北京首都机场的边防警察。