三种营养物质在日常餐食中的比例Average percentages in typical meals of three types of nutrients

Overall, dinners and lunches that USA residents consume are high in sodium and saturated fat, while their snacks have a high proportion of added sugar.

概述呈现两类主要差异，但没有明确说晚餐在前两项中占比最高。

The lunch they eat contains 29% sodium, 26% saturated fats and nearly 20% sugar.

29%、26%和约20%的数值正确，但contains容易使读者理解成午餐本身的营养构成；图表表示各餐对该营养全天摄入的贡献。

三幅饼图中早餐的钠、饱和脂肪、添加糖分别为14%、16%、16%；午餐29%、26%、19%；晚餐43%、37%、23%；零食14%、21%、42%。晚餐在钠和脂肪两项最高，零食添加糖最高。

In detail, USA citizens’ sodium, sugar and saturated fat intake during breakfast is comparatively lower, around 14-16% each time.

细节以早餐的低值起头，随后转入午晚餐，信息推进可辨。

They consume much higher percentages of these ingredients, which are harmful to health when eaten in too much. Their proportions of intake of sodium, saturated fat and sugar during dinner are 43%, 37% and 23%, respectively.

They的餐次指向须读到后句才明确，健康提醒重复引言，略打断从午餐到晚餐的比较。

The percentages of these three ingredients in breakfast, lunch, dinner and snacks that American citizens generally consume are given, and they are detrimental to health if consumed in large quantities.

detrimental to health搭配恰当，但以ingredients称钠、饱和脂肪和添加糖不够精确，consume相关词重复。

around 14-16% each time

数值范围表达简明，但each time未准确表示三种营养素分别的占比。

Their proportions of intake of sodium, saturated fat and sugar during dinner

能尝试比例和摄入相关词汇，但proportions of intake的组合较笨重。

Overall, dinners and lunches that USA residents consume are high in sodium and saturated fat, while their snacks have a high proportion of added sugar.

定语从句与while对照结构结合，语法控制良好。

They consume much higher percentages of these ingredients, which are harmful to health when eaten in too much.

which从句和省略结构显示句式尝试，但in too much结构错误，应表达为in excessive quantities或when too much is eaten。

Finally, the snacks they enjoy contain high sugar and fat, 42% and 21%, respectively, and sugar intake in snacks is higher than in their dinner and lunch.

定语从句省略关系词、并列结构和比较结构可读，标点基本受控。