mesognathic

例句：

1. 1. Thefossilized remains of the dinosaur are a reminder of the meso-zoic era.
   恐龙化石是中生代时代的提醒。
2. 2. The meso-zoic era was characterized by the riseof dinosaurs and theextinction of many species.
   中生代时代以恐龙的崛起和许多物种的灭绝为特征。
3. 3. The meso-zoic era is often associated with thedevelopment of land plants and the diversificationof animal life.
   中生代时代常与陆地植物的发展和动物生命的多样化联系在一起。