Barley was an unexpected find: the crop was domesticated in Western Eurasia and didn't become a staple food in central China until about 2,000 years ago, according to the researchers.

研究人员说，大麦是一个意外发现：这种作物生长在欧亚大陆西部，直到大约两千年前才成为中国中部地区的主食。

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Barley was an unexpected find: the crop was domesticated in Western Eurasia and didn't become a staple food in central China until about 2, 000 years ago, according to the researchers.

研究人员说，大麦是一个意外的发现：这种作物在欧亚大陆西部被引进，直到大约2000年前才成为中国中部地区的主食。

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In Shanxi, flour serves as a staple food, snack and even art.

在山西小麦面粉被作为一种固定的食材小吃甚至是艺术。

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Rice is a staple food in Cuba and the country consumes more than 700,000 tons of rice a year.

VOA: standard.2010.07.29

A economists say higher food prices will only increase the problems faced by the region's poor, who are highly dependent on rice as a staple food.

VOA: standard.2009.12.17

What used to be a rare food additive is now a staple.

VOA: standard.2010.04.25

The ahuacate, a pebbly-skinned, pear-shaped fruit, had been a staple food in Mexico, and Central and South America since 500 B.

NPR: What's in a Name? The Avocado Story

The price of pork, a staple food in China, soared by nearly 57% last month, the National Bureau of Statistics reported.

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The idea of a dedicated appliance for rice makes sense when we consider that it is such a staple food in most of the world.

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