n.踝骨；跗跖骨；瞼板
The tarsus bone in her ankle is shaped like our ancestors. 她踝關(guān)節(jié)的踝骨形狀像我們祖先的。
The avian tarsometatarsus distinguished from the tarsus and metatarsus of other quadruped by its unique characteristic of structure. 鳥類的跗跖骨以其獨特的結(jié)構(gòu)特征與其他四足動物跗骨、跗骨相區(qū)別。
