One kind of brown matter has been extracted from walnut pericarp and it has good properties of heat resistance and anti oxidation.

从核桃壳中提取得到了一种棕色素，该色素具有良好的耐热、抗氧化等性能。

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What's the matter with Mrs. Brown?

布朗夫人怎么了？

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Mr. Brown stopped him, "It doesn't matter. I will throw it away."

布朗先生打断了他：“没关系。我会把它扔掉的。”

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"Brown is pleased that the matter has been resolved, " attorney Christopher Brown said in a statement.

CNN: Bobby Brown goes to jail

He has written to Gordon Brown saying it is a matter of "urgency", given the speculation about a snap election.

BBC: NEWS | UK | UK Politics | Cameron seeking Whitehall talks

Only the euro frustrates the prime minister's sense that he is back in command of events (those wretched five tests invigilated by the brooding Mr Brown, and the little matter of having to win a referendum).

ECONOMIST: Bagehot