All that remained of a bygone age. 它们是一个过去时代的仅存硕果
that has remained almost the same for hundreds of millions of years. 已经保持了数亿年 几乎不变
if conditions on Earth had remained the same. 今天恐龙可能仍在统治世界
In the 66 years since my visit, Raine Island has remained 我拜访后的66年里 雷恩岛一直是
Why fungi light up has remained a mystery... 蘑菇发光的原因一直是个谜团
Eggs that have remained in the ground for 20 years begin to hatch. 在地下埋藏了20年的虫卵开始孵化
Its secrets remained unknown until 1986, 它的秘密直到1986年才被人们发现
These flooded caves in Mexico have remained virtually unchanged for thousands of years. 墨西哥的这些水洞 几千年来几乎保持不变