不倒翁的原理简介：Hahahaha, you think we are stupid, trying to touch an egg against a rock, but there is a squadron of Japanese soldiers, and we can't defeat them. Don't worry, just draw them for us, and you don't have to worry about the rest.
Hahahaha, you think we are stupid, trying to touch an egg against a rock, but there is a squadron of Japanese soldiers, and we can't defeat them. Don't worry, just draw them for us, and you don't have to worry about the rest.
