Place it just after the moment someone looks unwell in your edit, then follow it with the Roblox Oof for a comic reaction and the Nope Meme Sound when the group backs away.
關於此聲音
This is a very short spoken line, lasting just over a second, in which a voice admits "I don't feel too well" in a weak, queasy tone. It lands as queasy and a little pitiful, the kind of admission that makes listeners wince and smile at the same time.