Place it at the end of a failed attempt, after the buildup and just before the reaction shot. Open the sequence with Dun Dun Dun to set up the loss, then follow this clip with SpongeBob Fail to stretch the joke into the aftermath.
关于此声音
This is a very short sound effect, lasting just over a quarter of a second, built around the moment a challenge is lost. It lands as a quick, flat punctuation mark rather than a drawn-out reaction, giving a listener a small jolt of disappointment and comic defeat. It works best as an instant signal that an attempt has failed, without needing any words to explain what went wrong.