The index case was identified through routine yellow fever surveillance system.

指示病例是通过常规黄热病监测系统发现的。

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The case was detected by the national Yellow fever surveillance system.

此病例是该国黄热病监测系统发现的。

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In this case, it's a simple yellow-on-black text attribute.

在本例中，它是简单的黑底黄字文本属性。

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On one occasion, my mother bought me a lot of yellow and green, also the orange, I found a small green become yellow, and yellow some small orange has become, this is how the case?

有一次，妈妈给我买回了许多有绿也有黄的橘子，我发现绿色部分里的小窝窝变成了鹅黄色，而黄色部分里的小窝窝却变成了橘黄色，这是怎么回事呢？

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This is a yellow pencil case.

这是一个黄色的铅笔盒。

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This is a yellow pencil case.

这是一个黄色的铅笔盒。

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