词汇	essence center
释义	essence center 本质中心
随便看	medium dip medium dissemination medium distance medium-distance medium distance aids medium-distance aids medium-distance and long-distance run medium distance cable transmission medium distance communication medium-distance communication medium distance modem medium-distance public transport medium distance race Medium-distance race medium distance running medium DNA fragment Medium doctor medium document medium done meat medium dosage medium dose medium dozer medium draft medium draining screen medium drawing