although the fossil record is incomplete, it still gives us a broad brush outline of what happened . 尽管化石记录不很完全,但仍然给我们一幅关于到底发生了什么事情的大体轮廓。
the fossil record indicates these people had conquered disease 化石记录显示他们征服了疾病
a fossil record 化石的记录
the first animals in the fossil record appeared between 620 and 550 million years ago in the vendian period 第一动物在化石纪录出现在620和550百万之间年前在vendian期间。
for example, the fossil record shows elephants that found their way onto islands millions of years ago shrank rapidly 例如,化石记录显示,数百万年前开始到岛屿上生存的象群数量减少非常迅速。