吸虫纲 (吸蟲綱) xīchónggāng

xīchónggāng proper noun Class Trematoda; fluke; trematode worm, a parasite incl. on humans
Domain: Modern Chinese 现代汉语 , Subdomain: Zoology , Concept: Insect 昆虫
Notes: (CC-CEDICT '吸蟲綱')