在这两种情况下，购买者都在发出同样的信号：他们乐意花更多的钱，购买一个名牌包，或是购买可以让可可种植者生活得好一些的巧克力。

In both cases buyers are sending signals: that they are prepared to spend more on a bag with a prestigious label, or on chocolate that provides cocoa growers with a better life.

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表示闭包，其中方法的主体就是花括号中的内容。

where the method body is the contents of the curly braces.

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有时候，网络状况可能导致音频包不能按序到达，或者在传输中丢失，或者比预期花更多的时间到达目的地。

Sometimes, network conditions can cause audio packets to arrive out of order, to be lost in transmission, or to take longer to get to their intended destination than expected.

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