And people had began to try to work out if animals were on the planet before - you know, what was the age of the earth?
人们之前就开始尝试弄清楚地球上是否有动物——你知道，地球的年龄是多少？
| 单词 | age of the earth |
| 例句 |
原声例句
TED Radio Hour And people had began to try to work out if animals were on the planet before - you know, what was the age of the earth? 人们之前就开始尝试弄清楚地球上是否有动物——你知道，地球的年龄是多少？ |
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