以下是一些英文對話中關於"check in"的例子：
在酒店辦理入住手續：
Good morning, sir. Welcome to our hotel. Glad to meet you. Are you checking in?
I'll ring the hotel. I'll tell them we'll check in tomorrow.
在機場辦理登機手續：
Here are our tickets and passports. We're flying to Amsterdam today. Welcome to KLM. Let's see... Yes, your passports are still valid and your tickets are in order. How many pieces do you want to check in?
Passengers with hand luggage can go straight to the departure gate to check in there.
其他相關用法：
I am a new hand, I is to check in.（我是新手，我是來報到的。）
Come back to the hospital for a check in a month.（一個月後到醫院複查。）
以上對話展示了"check in"在不同情境下的用法，希望對你有所幫助。