We've been able to determine that the ground water system we've discovered dates from around 3.5 billion years ago, but we don't know when or how the basins dried up.
我们已经确定,我们发现的地下水系可追溯到大约35亿年前,但是我们不知道这些盆地什么时候干涸,以及如何干涸。"
单词 | ground water system |
例句 |
原声例句
VOA Special 2019年3月合集 We've been able to determine that the ground water system we've discovered dates from around 3.5 billion years ago, but we don't know when or how the basins dried up. 我们已经确定,我们发现的地下水系可追溯到大约35亿年前,但是我们不知道这些盆地什么时候干涸,以及如何干涸。" |
随便看 |
英语例句辞典收录519880条英汉例句词条,基本涵盖了全部常用单词的造句方法及例句,是英语学习的有利工具。