Used to pose a question about whether something is possible, whether someone is able to do something, or whether an event is likely to happen.

Internet slang meaning one wouldn't be in this trouble if they hadn't behaved foolishly; often translated as "if you don't do stupid things, they won't come back to haunt you" or "no zuo no die"

literally "meat pies do not fall from the sky"; used to mean that nothing is achieved or gained without effort or cost