5 sentences

1. 左侧车门将会打开。

   zuǒ​cè chē​mén jiāng huì dǎ​kāi.

   The doors on the left side will open.

   Source: OpenSubtitles

2. 请不要靠在车门上。

   qǐng bù​yào kào zài chē​mén shàng.

   Please do not lean against the car door.

   Source: Dong Chinese Dictionary

3. 打开中间的车门。

   dǎ​kāi zhōng​jiān de chē​mén.

   Open the middle door.

   Source: OpenSubtitles

4. 为了安全，请勿在车辆行进时开启车门。

   wèi​le ān​quán, qǐng wù zài chē​liàng xíng​jìn shí kāi​qǐ chē​mén.

   For safety, please do not open the doors while the vehicle is in motion.

   Source: Dong Chinese Dictionary

5. 由于车厢内太拥挤，他只能紧贴着车门站立。

   yóu​yú chē​xiāng nèi tài yōng​jǐ, tā zhǐ néng jǐn​tiē zhe chē​mén zhàn​lì.

   Because the carriage was too crowded, he could only stand pressed against the door.

   Source: Dong Chinese Dictionary