请允许我介绍今天的重要发言人，刘三斤先生。
It is my home to introduce today's keynote speaker, Mr. Liu.
我想你也不需要有太多的专业知识去判定一下子吃进三斤多的盐是否对健康有害，我甚至认为吃那么多盐根本就是不可能的。
You don't have to be a health expert to know that consuming that much salt in a sitting isn't healthy. I'm not sure it's even possible!
婴儿出生时体重为三公斤。
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