1、That's key to understandingplanet formation.(这是理解行星形成的关键。)
2、Once, there was a little greyplanet.(曾经，有一个小小的灰色星球。)
3、In reality, sea level varies according to the irregular interior of theplanet.(事实上，海平面会根据地球不规则的内部而变化。)
4、It was way too faint to be aplanet.(它太暗了，不可能是行星。)
5、We can't sit by and watch ourplanet destroyed.(我们不能坐视地球被破坏而不理。)
6、The nextplanet out, Uranus—after Saturn.(土星之后的下一颗行星是天王星。)
7、If there are so many stars out there, that means there might also be aplanet just like theplanet we live on.(如果那里有那么多星星，那就意味着可能也有一颗和我们居住的行星一样的行星。)
8、That means one out of six people on theplanet uses Huawei hardware.(那意味着，地球上每六个人中，就有一个人使用华为的硬件。)
9、Saturn is the second biggestplanet in the solar system.(土星是太阳系的第二大的行星。)
10、Extracting information about the large-scale composition of aplanet from a sample weighing a millionth of a gram was a fascinating example of scientific endeavour.(从重量为百万分之一克的样品中提取有关行星宏观组成的信息是一个极为有趣的科学尝试实例。)
11、Is there a core in theplanet?(这个星球有核心吗？)
12、Rock on aplanet is also important.(行星上的岩石也很重要。)
13、This would change the geography of theplanet considerably.(这将大大改变地球的地形。) (hao86.com好查)
14、The word 'planet' literally means 'wandering body'.(planet一词字面上的意思是wanderingbody。)
15、Forget Gaia, save a marsh; forget theplanet, save a frog.(忘记地球，去拯救一片湿地；忘记行星，去拯救一只青蛙。)
16、The newly discovered world followed an orbital path unlike that of any otherplanet.(新发现的这个天体的运行轨和任何其他行星的不同。)
17、The newplanet is about ten times the size of the earth.(这个新发现的行星大约是地球大小的10倍。)
18、Their enemies ruined theirplanet.(他们的敌人摧毁了他们的星球。)
19、Do you know that one-fifth of theplanet speaks Chinese?(你知道地球上有五分之一的人说中文吗？)
20、In 1664 Hooke observed a reddish spot on the surface of theplanet.(1664年，胡克观察到了那颗行星表面的一个微红的斑点。)
21、Logically, one day they must: theplanet is a finite place.(从逻辑上讲，总有一天他们必须这样做：因为地球是一个有限的空间。)
22、We are reproducing ourselves at such a rate that our numbers threaten the ecology of theplanet.(我们繁衍得如此之快，以至于人口数量威胁到地球的生态系统。)
23、That's not so good for you, or for theplanet.(这对你或者地球都不是好事。)
24、Let us suppose anotherplanet with conditions similar to those on the earth.(让我们假设另一个星球的情况与地球上的相似。)
25、Ourplanet has shrunk.(我们的星球缩小了。)
26、Thisplanet sits in the southern constellation of Fornax.(这颗行星位于天炉星座的南部。)
27、There are lots of ways of annihilating theplanet.(有很多毁灭那个星球的方式。)
28、Scientists are studying photographs of theplanet for signs of life.(科学家仔细察看行星照片，寻找生命迹象。)
29、The sun is the major source of energy for ourplanet.(太阳是我们星球能量的主要来源。)
30、Scientists think there was probably water on theplanet long ago.(科学家们认为很久以前在那个行星上可能有水存在。)
