Place it just after a knock at the start of an arrival scene, then follow it with a short voice line or footsteps as the character steps inside. It also works between a car engine stopping and a greeting, keeping the sequence clear and easy to follow.
关于此声音
This is a very short car door sound effect, lasting under a second, capturing a door opening and then closing in one quick movement. It feels plain, practical and instantly familiar, with a brief mechanical snap that makes the action feel real and unforced, rather than staged or dramatic.