VOA慢速英语:Blue Holes: Some of the Least Explored Areas on Earth

短语讲解：

1. A blue hole is a flooded sea cave with a hole that opens up at the land’s surface.

open up切开; 打开
例句：The police had to get special permission to open up the grave.
警察必须在获得特准后, 才能打开这座坟墓。

2. Yet these areas are filled with life forms that have adapted to the extreme conditions.

fill with (使)充〔挤〕满
例句：His eyes filled with tears as he looked lovingly at her.
他深情地望着她, 眼里充满了泪水。
adapt to变得习惯于…, 使适应于, 能应付…
例句：I adapted quickly to the new climate.
我很快地适应了这种新的气候。

3. Blue holes are the result of erosion in which water breaks down rock. Rain falling thousands of years ago contained chemicals which slowly wore away at the limestone landmass.

break down拆散; 分类
例句：The firemen broke down the wall in order to gain quick access to the building on fire.
为了很快地进入着火的房子, 消防队员拆了那面墙。
wear away磨损, 磨掉, 侵蚀
例句：The letters on this gravestone have been worn away with time.
随着时间的流逝, 墓碑上的文字已经被磨损。

4. And, they must pay careful attention to their air supply.

pay attention to注意，关心
例句：No attention was paid to his advice.
他的建议没有引起注意。

5. There are many difficulties involved in diving in blue holes.

involve in使参与〔陷入, 牵扯到〕
例句：She was involved in working out a puzzle.
她在聚精会神地解一道难题。

6. You can jump into what looks like an insignificant little hole in the ground, and come out with information that’s of value to many different disciplines, from a scientific-academic perspective.

come out with发表,公布,说出,展出,供应,宣布,把…投入市场
例句：That year they came out with another article.
那一年他们又发表了一篇文章。

7. Astrobiologists can compare information about these organisms and their environment to other oxygen-free environments, like those in space.

compare to把…比作, 喻为; 与…相比
例句：Shakespeare compared the world to a stage.
莎士比亚把世界比作舞台。

8. He says younger generations are generally not aware of such caves.

be aware of知道; 意识到
例句：He doesn't seem to be aware of the problems.
他好像没有意识到这个问题。

9. Many blue holes have become areas where people throw away waste.

throw away扔掉，丢弃，抛弃
例句：He threw away the old sofa.
他把旧沙发扔掉了。

10. Part of Kenny Broad’s goal is to raise awareness about these underground areas so local communities will take better care in protecting them.

take care当心, 小心
例句：He took care never to offend his visitors.
他小心谨慎, 绝不得罪他的访客。