词汇	Claude Arien Helvétius
释义	Claude Arien Helvétius 爱尔维修
随便看	economical length economical level economic alliance economical life economical life of tractor economical lifespan economical life-span economical load economical-load economical load dispatcher economical load dispatching economical loading economical load rate Economic allocation economical lot sizes in production economic allribntes economically economically active employed population economically active female population economically active person economically active population Economically active population in agriculture economically advanced country economically-advanced country economically advanced regions