The evidence lies in the fact that the chemistry of the lava that erupted at Sudbury changed over time.

证据在于，萨德伯里喷发的岩浆，其化学成分随着时间推移而发生变化。

At my request he sent for Sudbury and Blount, the two students who had found the dog.

应我的要求， 他派人把萨德伯里和布朗特找来， 这两个学生是发现那只狗的。

In many spots in the solar system it looks like volcanism happened much longer after the impact than what she saw at Sudbury.

太阳系中的许多地方都有火山活动，看起来发生时间比她在萨德伯里看到的撞击时间要晚得多。

To find out, scientists went to one of the few massive craters on Earth not erased by plate tectonics: the Sudbury crater in Canada.

为了找到答案，科学家前往地球上未被板块构造运动消除的几个大型陨石坑之一——加拿大的萨德伯里陨石坑。