首先，最关键的信息来源蕴含在所谓的零龄样本(zero - age sample)中，即刚从熔岩湖中刚刚冒出的大块岩浆。

For starters, one crucial source of information is what's known as a zero-age sample: a chunk of lava fresh from the lake.

youdao

首先，最关键的信息来源蕴含在所谓的零龄样本(zero - age sample)中，即刚从熔岩湖中刚刚冒出的大块岩浆。

For starters, one crucial source of information is what's known as a zero-age sample: a chunk of lava fresh from the lake.

youdao