英漢例句雙語例句These included a pygmy hippopotamus.這儅中包括一頭俾格米河馬。Many of the species are the only representative of groups that have otherwise died out. West Africa's pygmy hippopotamus, known for its thick, oily "blood-sweat, " is the only member of its genus.很多物種是一些種群的唯一代表，否則這些種群早就滅絕了。西非的矮河馬，它以稠而油的血汗被人們所知，是其種群的唯一成員。pygmy hippopotamus更多例句