词汇	Yanshan mountain area
释义	Yanshan mountain area 燕山山区
随便看	law of evidence law of evolution law of exception to routine law of exchange law of exchange of equal amounts of labo law of exchange of equal amounts of labour law of exchange of equal amounts of labo u r law of excitation law of excluded middle law of exercise law of exluded middle law of expectation law of expection to routine law of exponent law of exponentiation law of exponents law of extradition law of Extradition law of extreme light path law of extreme path law of facilitation law of falling bodies law of family law of family planning law of farad electromagnetic induction