Coral reefs are one of the most fragile, biologically complex, and diverse marine ecosystems on Earth.
珊瑚礁是地球上最脆弱、生态性最复杂、最多样化的海洋生态系统之一。
While they are strong enough to have survived thousands of years on earth, they are so fragile in the face of earthquakes, global warming, deforestation, overgrazing as well as natural erosions.
历经千年的洗礼，在面对地震、气候变暖、森林砍伐、过度放牧等自然或人为的变迁时，它们依旧脆弱不堪。
Niesward claims that on this day "Earth occupies one of the most fragile positions in its orbits for the last 100 years."
尼斯瓦德教授说，在7月20日这一天，“地球处于运行轨道上一百年来最薄弱的位置上”。
Human beings are the most powerful but most fragile creature on the earth. Do you agree?
人是地球上最强大却又最脆弱的生物，你说是吗？
It seemed to me that I was carrying a very fragile treasure. It seemed to me, even, that there was nothing more fragile on all Earth.
我觉得，自己似乎抱着一件易碎的珍宝，甚至觉得地球上再没有比这更脆弱的东西了。
It seemed to me, even, that there was nothing more fragile on all Earth.
就好象在地球上没有比这更脆弱的了。
We have to learn to cherish this earth and cherish it as something that's fragile, that's only one, it's all we have.
我们要学会珍惜这个地球，把它当作极易破碎的东西、唯一我们所拥有的东西（来爱惜）。
Many of us do not realize that the earth we live on is a fragile being that needs to be protected like a new born child .
我们中的许多人没有意识到，我们生活在地球上是一个脆弱的，需要加以保护，就像一个新出生的孩子。
Let us consider the degree of security the Earth offers, the dangers lurking in space, and the unique conditions required for the maintenance of the fragile force we call.
让我们考虑地球赐予我们的安全程度，空间中潜藏的种种危险，以及维持我们称之为生命的这种脆弱力量的独特条件。
Nature is ephemeral: Earth is fragile and it is in danger of collapse.
自然是短暂的：地球很脆弱，而且处于崩溃的危险中。
Nature is ephemeral: Earth is fragile and it is in danger of collapse.
自然是短暂的：地球很脆弱，而且处于崩溃的危险中。
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