Lymphatic ducts are not abundant.

淋巴管不丰富。

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But it is not abundant to comment a Dream of Red Mansions with tragic theory.

但悲剧说对《红楼梦》的解说并不充分。

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If fish is not abundant, our children are allowed to feed first and foremost to assure the preservation of our species.

如果鱼类不充足，那孩子们就被允许首先进食以确保我们物种的延续。

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The interaction has to have a useful effect damping down the activity of a protein that is too abundant, perhaps, or stimulating that of one which is not abundant enough.

ECONOMIST: Computers may give new life to old medicines

Household names are not abundant in the 2013 class, but there are intriguing sagas like Michigan quarterback Denard Robinson, who is trying to make the NFL as a wide receiver.

WSJ: NFL Combine: Football Is Back! (Wait: Already?)��Jason Gay

The most compelling case for asteroid mining is for a yet-undesired element that turns out to be not abundant in the earth's crust and becomes suddenly valuable because of some future technological advance.

WSJ: Exhausting the Earth's Resources? Not So Fast