To ensure foolproof, Liu Chuandao opened the small group chat of the class boys and asked:
"Brothers, let me ask, between a 200-pound woman and a 200-pound sandbag, both are equally heavy, right?"
During self-study class, many boys in the back row had their phones, Wang Longlong replied: "Brother Dao, are you out of your mind?"
Liu Chuandao: "I'm just asking, just asking!"
Cui Yu: "The 200-pound woman is heavier."
Liu Chuandao: "Aren't they both 200 pounds?"
Cui Yu: "Not the same, because they will underreport their weight."
Liu Chuandao instantly became alert, fortunately, he was not careless and asked in the class group in advance.
...
With the sound of the school bell, students rushed out of the classroom.
But there are always some people, sitting calmly like Taishan, such as Chen Qian, such as Huang Yuzhu.
Today it was Huang Yuzhu's turn to clean the classroom. After most students had left, he picked up the broom and earnestly began to sweep.
