The immensity of the universe is difficult to grasp.宇宙的浩瀚难以捉摸。the immensity of the universe宇宙的浩瀚无垠The business is conducted on a scale of unprecedented immensity.这项业务是按前所未有的巨大规模来经营的....
该州十一所学校是用一种濒临灭绝的海洋动物——海牛来命名的.Eleven honor the manatee, an endangered sea animal found in that state.我们看了海豚 、 海牛 、 海狮和鲸的表演.We watched dolphin, manatee, sea lion and whale shows.海象的外形是从海牛物种里演化而成.The shape of Walrus evolved...