So, what evidence of a liquid water environment did we find in rock samples taking from the oldest rocks on Earth?

那么，在从地球上最古老的岩石中提取的岩石样本中，我们发现了什么液态水环境的证据呢？

youdao

Both oil and gas are less dense than water, so they generally tend to rise upward through water-saturated rock and sediment.

石油和天然气的密度都比水小，所以二者通常会浮在被水浸泡的岩石和沉积物的表层。

youdao

The oceanic plate is made of denser and heavier rock, so it begins to sink down under the continental plate and into the mantle.

海洋板块是由密度更大、更重的岩石构成的，所以它开始下沉到大陆板块之下，到地幔之中。

youdao

"So,I'm also now a wilderness EMT so it's totally a good thing to have when you're out rock climbing."

VOA: special.2009.12.09

So because so much popular music and particularly rock music has those chords in root position we can track them more readily.

因为很多流行音乐尤其是摇滚乐会在原位上添加这样的和弦,这样听起来会比较悦耳。

耶鲁公开课 - 聆听音乐课程节选

Why are you so passionate about rock climbing even though it's dangerous?

为什么攀岩那么危险你还喜欢呢？

攀岩的刺激 - SpeakingMax英语口语达人

Such blue-chip financial institutions rely largely on 20 or so rock-star sharia scholars to certify that their financial products are in accord with the Koran and the Prophet's teachings.

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' So the rock 'n' roll edge, having a rock guitar, was kind of the icebreaker to say we're familiar.

NPR: RUN DMC Crashes Rock's Hall Of Fame, Again

"Our whole thing is so 'rock': we do crossword puzzles, " she says.

NPR: At Home in Nashville with Kim Richey