英语语法分析

The complete coossification of the proximal tarsals with the tibia, and of the distal tarsals and proximal metatarsals, present in Albinykus are previously unknown in Alvarezsauridae.

游光爪龙的胫骨及跖骨的独征在其他已知的阿瓦拉慈龙类是未知的。