answer 2: the apes on both sides of the strait can't stop crying, and the canoe has passed Chung Shan Man.
Answer 3: It's as easy as blowing off dust
Answer 4: I know how to solve the cow: "I know how to solve the cow for Wen Huijun. My hands touch it, my shoulders lean on it, my feet walk on it, my knees stand on it, and I feel like it."