Engaged in paleontology , geology, glaciology, and the mechanics of research and teaching.从事古生物学 、 冰川学和地质力学的研究和教学工作.Paleontology , geology , zoology, and ethnology.收藏古生物学 、 质学 、 物学和人种学.Collect paleontology, entomology, z...
除非是用作种犬，所有的母犬都应摘除卵巢。All bitches should be spayed unless being used for breeding.他因没能给比特犬戴嘴套而被判有罪。He was convicted of failing to muzzle a pit bull.可以训练嗅探犬追捕他们。Sniffer dogs could be trained to track them down....