例句與造句

1. sinosauropteryx ( compsognathids ), beipzaosaums ( therizinosaurids ) and shuvuuia ( alvarezsaurids ) have the filament-like protofeathers that lack the rachis and barbules
   …具有最為簡單的原始羽毛狀構(gòu)造，這種構(gòu)造不具備羽干及羽小枝；而proto17vaeoptepe、ca。dhtepe。
2. It's difficult to find compsognathids in a sentence. 用compsognathids造句挺難的