Life on Earth will become unsustainable unless population growth is held in check.
人口增长要是不加控制的话，地球上的生命将无法持续发展。
《柯林斯高阶英汉双解学习词典》
I can understand why astronauts find it difficult to readjust to life on earth.
我能够理解为什么宇航员发现重新适应地球上的生活不容易。
《柯林斯高阶英汉双解学习词典》
Some pulsars keep time better than the earth's most accurate clocks.
某些脉冲星发送脉冲比地球上最精确的时钟都准时。
《柯林斯高阶英汉双解学习词典》
Camels are among the most physiologically resilient creatures on Earth.
骆驼是地球上生理适应能力最强的生物之一。
《柯林斯高阶英汉双解学习词典》
The parameters within which life can be sustained on Earth are extraordinarily narrow.
地球上生命可以存活下来的地域范围是非常狭小的。
《柯林斯高阶英汉双解学习词典》
Scientists have described the Aral sea as the site of the worst ecological disaster on earth.
科学家把咸海描述成地球上最严重的生态灾难发生地。
《柯林斯高阶英汉双解学习词典》
The total number of species on the planet appears to be growing by leaps and bounds.
地球上的物种数目似乎正飞速增长。
《柯林斯高阶英汉双解学习词典》
The drag of those extra air molecules brought the satellite crashing to Earth.
额外的空气分子阻力使得卫星坠毁到了地球上。
《柯林斯高阶英汉双解学习词典》
Roll up, roll up, come and join The Greatest Show on Earth.
快来呀，快来呀，来一起看“地球上最精彩的演出”。
《柯林斯高阶英汉双解学习词典》
The Northern Lights are effortlessly one of Earth's most visually striking natural spectacles.
北极光是地球上比较容易见到的最壮观的自然现象之一.
互联网摘选
That means that in about 600 years, there will be standing room only on the earth.
这意味着大约600年后, 地球上将只有站立的空间了.
网络文摘精选
An UN report says that there will be standing room only on the earth then.
一项联合国报道说那时在地球上只剩下站着的空间.
网络文摘精选
