你把车门锁好了没?
Nǐ bǎ chēmén suǒhǎo le méi?
Did you lock the car doors?
你记得把门锁好。
Nǐ jìde bǎ mén suǒhǎo.
Remember to lock the door properly.
这些储物柜全都使用密码锁。
Zhèxiē chǔwùguì quándōu shǐyòng mìmǎsuǒ.
All these lockers use combination locks.