◎蠹虫dùchóng
(1) [a kind of insect that eats into books,clothing,etc.;book motheating insect;vermin]
(2) 蛀蚀树木、器物的虫子
(3) 比喻从内部损害集体的坏人…
◎蛀虫zhùchóng
(1) [insect that eats books,clothes or wood;moth;borer]∶取食于树干、衣服、书籍、谷物等的昆虫
(2) [borer]∶比喻从内部造成损害的人
蛀虫，个体较小，成虫…