hy·po·stome /ˈhaɪpəˌstom/ 垂唇; 口後片; 口下板
hy·po·stome /ˈhaɪpəˌstom/ 名詞 口下板
Hy·po·stome Hy·pos·to·ma n. Zool. The lower lip of trilobites, crustaceans, etc. ◄ ►