As we see in the picture, a white spot is in the black area and a black spot is in the white area.

正如我们在图中所见的，一个白点在黑色区域中，一个黑点在白色区域中。

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The method divides the background of fingerprint image into two layers: outboard black area and inboard tint area.

该方法将指纹图像的背景分为两层：外层黑色背景区域和内层浅色背景区域。

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Under soil drought stress lamella structure of chloroplast wrenched obviously and there was a black area, which had high electron density in the middle of chloroplast.

在土壤干旱胁迫下，叶绿体的片层结构发生严重的扭曲并在中央部分形成电子密度较高的黑色团块物质。

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It is about an extremely overweight black teenager in the Harlem area of New York City.

VOA: special.2010.01.01

Precious is an extremely overweight black teenager in the Harlem area of New York City.

VOA: special.2010.03.01

The law at that time required black people seated in one area of the bus to give up their seats to white people who wanted them.

VOA: special.2009.03.08

Within 24 to 48 hours, an itchy red bump that resembles a bug bite develops, with a characteristic black area in the center where the skin is dying.

CNN: Cutaneous anthrax most common, most survived

The Black Sea area of Russia has been particularly hard hit, with at least 58 deaths over the course of the weekend.

BBC: Battered Prague hopes for respite

Forecasters said as much as 6 inches of new snow was possible in the Black Hills area of South Dakota through Monday morning.

WSJ: Midwest Cities Fight Off Floodwaters