Do you know this?
steroid
any of several fat-soluble organic compounds having as a basis 17 carbon atoms in four rings, many have important physiological effects
lanchou
the capital city of the Chinese province of Gansu on the Yellow River
desolate
reduce in population
cast iron
an alloy of iron containing so much carbon that it is brittle and so cannot be wrought but must be shaped by casting
dehisce
burst or split open

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