单词	formaldehyde
释义	formaldehyde /fɔːˈmaldɪhʌɪd / noun [mass noun] Chemistry A colourless pungent gas in solution made by oxidizing methanol. Alternative name: methanal; chemical formula: CH2O. Set on fire, these items release formaldehyde, polyvinyl chloride, and dioxins.... They are produced by the polymerization reaction of phenol and formaldehyde. Bleach, ethyl alcohol, and formaldehyde can kill the virus in the environment. Origin Late 19th century: blend of formic acid and aldehyde.
随便看	have a (or one's) bellyful have a plum in one's mouth have a problem with have a screw loose have a shy at have a soft spot (also soft corner) for have at have a thick (or thin) skin have a thick skin have a thing about have a thing for have a thin time have a tiger by the tail (also be riding a tiger) have a tin ear have a way with have a way with one have a whale of a time have a will of one's own have a word have a word in someone's ear have bats in the (or one's) belfry have-been have been around have been around the block (a few times) have been known to do something

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