问题描述：
英语翻译
and what kind of food may do harm to their health.the USDA has prepareda food guide to help people learn about which kind of food is the healthiest to eat.the food guide describes six main food groups.the USDA also suggests how much of each food group is healthy to eat daily.though this guide was prepared by the US government,it is very useful for people all over the world.
and what kind of food may do harm to their health.the USDA has prepareda food guide to help people learn about which kind of food is the healthiest to eat.the food guide describes six main food groups.the USDA also suggests how much of each food group is healthy to eat daily.though this guide was prepared by the US government,it is very useful for people all over the world.
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