They turn a greenish brown.

他们把绿色棕色。

youdao

The less common shades are yellowish brown and greenish brown.

其它不常见的颜色还有黄褐及绿褐色。

youdao

My membranes ruptured, and the fluid isn't clear-it's greenish brown.

我的胎膜破裂了，羊水颜色不清澈——是绿褐色的。

youdao

And their color is usually greenish brown.

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But what he pulled up from the depths looked more like a lizard than a fish, with greenish-brown skin, a snub nose and tiny legs.

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The bottom is mainly brilliant white sand or greenish grass, but we were searching for the vaguely brown and yellow hues that indicate the rocks and coral where Caribbean spiny lobster (commonly referred to as "bugs" for their insect-like appearance) live.

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