The 23 million-year-old creature was not a direct ancestor of today's seals, sea lions and walruses, a group known collectively as pinnipeds.
这只2300万年的生物并不是如今海豹、海狮和海象的直系祖先，而是
一个
支。
The 23 million-year-old creature was not a direct ancestor of today's seals, sea lions and walruses, a group known collectively as pinnipeds.
这只2300万年的生物并不是如今海豹、海狮和海象的直系祖先，而是一个支。
声
：以上例句、词
均由互联网资源
动生成，部未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
