Another friend, who prefers to remain anonymous, remembers coming home to find his father mopping up blood and broken glass from their front room after "a lively discussion" with a business associate.

另外一位不愿透露姓名的朋友告诉我，他仍然记得某一天回到家中，竟发现父亲正在前室擦拭血迹和收拾碎玻璃，而之前，他正在和一个商业伙伴进行一场“生动的讨论”。

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After that they gave our teachers very professional reviews and guidance, and had a lively discussion about "how to improve classroom efficiency."

课后，专家对课做了点评和专业的指导，并与老师们一起就“如何提高课堂效率”进行了热烈探讨。

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