57英尺长，9吨重，棘龙在大约1亿年前的白垩纪早期就开始四处活动。
Fifty-seven feet long and up to nine tons, spinosaurus started poking his head around the early Cretaceous some 100 million years ago.
它的长度几乎达到19英尺，光是前后突出部分就有8英尺长，其自重超过两吨半。
It was nearly 19 feet long, of which eight feet was front and rear overhang, and weighed more than two-and-a-half tons.
尼克伦和我搭乘的巡游舰“国家地理探索者National Geographic Explorer”有367英尺长，重6000吨。
The cruise ship on which Nicklen and I hitched a ride, National Geographic Explorer, was 367 feet and 6, 000 tons.
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