如果你正在计划一次国际旅行，那么你一定需要知道如何用英语表达乘坐飞机的相关内容。下面是一些常用的英语口语，可以帮助你更好地与机场工作人员和机组人员沟通。

1. Check-in： 登机手续

When you arrive at the airport, you will need to check in for your flight. This involves presenting your passport and ticket to the check-in desk, and possibly checking any luggage.

当你到达机场时，你需要办理登机手续。这包括向登机柜台出示你的护照和机票，可能还要托运行李。

例句：Excuse me, where can I check in for my flight?

2. Boarding pass： 登机牌

Once you have checked in, you will be given a boarding pass. This is a document that allows you to board the plane and includes your seat number and boarding time.

一旦你完成了登机手续，你将获得一张登机牌。这是一份允许你登机的文件，包括你的座位号和登机时间。

例句：I need to print my boarding pass, where can I do that?

3. Security check： 安检

Before you can board the plane, you will need to pass through security. This involves placing your personal items and carry-on luggage through an X-ray machine and walking through a metal detector.

在你登机之前，你需要通过安检。这包括将你的个人物品和随身行李放入X光机，并经过金属探测器。

例句：I need to go through security, where is the security checkpoint?

4. Gate： 登机口

The gate is the location where you will board your flight. It will be listed on your boarding pass and displayed on screens throughout the airport.

登机口是你登机的位置。它会列在你的登机牌上，并在整个机场的屏幕上显示。

例句：What gate is my flight departing from?

5. Boarding： 登机

Boarding is the process of getting on the plane. You will need to present your boarding pass and passport, and possibly have your carry-on luggage checked again.

登机是上飞机的过程。你需要出示你的登机牌和护照，可能还需要再次检查你的随身行李。

例句：When will boarding begin for my flight?

6. Seat： 座位

Your seat is the location where you will sit on the plane. It will be indicated on your boarding pass and you will need to find it once you board the plane.

你的座位是你在飞机上的位置。它会在你的登机牌上标明，你需要在登机后找到它。

例句：Excuse me, can you help me find my seat?

7. Take off： 起飞

Take off is the moment when the plane begins to leave the ground and ascend into the air.

起飞是飞机开始离开地面并升空的时刻。

例句：We will be taking off in a few minutes.

8. Landing： 降落

Landing is the moment when the plane touches down on the runway and comes to a stop.

降落是飞机着陆在跑道上并停下来的时刻。

例句：We will be landing shortly, please fasten your seatbelts.

以上是一些关于乘坐飞机英文口语的常用表达。希望这篇文章对于你的国际旅行有所帮助。