High-cocoa chocolate contains compounds called polyphenols, which research shows may keep blood vessels dilated and help lower blood pressure.

高可可脂的巧克力含有多酚，研究表明可以使血管扩张、降低血压。

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The length of roasting depends on the type and size of the beans to form cocoa, which is mixed with sugar and fats to form chocolate.

烘焙时间的长短取决于可可豆的种类和大小，可可豆与糖和脂肪混合形成巧克力。

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There are two main causes of the chocolate shortage—chocolate's growing popularity and less production of cocoa, the plant from which chocolate is made.

巧克力短缺的主要原因有两个——巧克力越来越受欢迎，以及制作巧克力的植物可可产量减少。

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Chocolate comes from cocoa beans, and more than half of those beans come from two countries in West Africa.

VOA: special.2010.10.26

Chocolate makers have their own special recipes in which they combine chocolate liquor with exact amounts of sugar, milk and cocoa fat.

VOA: special.2010.02.17

American Senator Tom Harkin and Representative Elliott Engel led negotiations with the chocolate and cocoa industries.

VOA: special.2010.10.26

It's what most people are used to eating, so what is with this growing obsession with 100% cocoa chocolate?

BBC: Chocolate: The rise of the cocoa purists

"People are waking up to the fact that chocolate is not a generic product, " says Willie Harcourt-Cooze, owner of Willie's Cocoa, which also produces 100% cocoa chocolate.

BBC: Chocolate: The rise of the cocoa purists

Flavonols are found in cocoa, and dark chocolate contains more cocoa than milk chocolate does.

CNN: Daily chocolate may keep the heart doctor away