Learn what "i'll leave the door unlocked just in case" means, when people say it, and how to use it naturally in English.

It means the speaker will do something as a precaution in case it is needed later.
From She Is Mine, Episode 51
The speaker says they will keep the door unlocked as a precaution.
Use this for everyday practical plans and safety precautions. It sounds natural and common in spoken English.
Scenes unlock real expressions as you watch
Tap to translate or use dual subtitles
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