常见例句Trityldon(Greek for 3 cusped tooth) was a species of tritylodont, one of the most advanced group of cynodont therapsids. 三瘤齒獸是三瘤齒獸科中的一屬，而三瘤齒獸類是犬齒獸類中最先進的一群。 返回 Tritylodont