经济学人双语精析的小编团队，是由爱好英语的
英专生以及硕博生
组成，小编团队英语能力突出，
六级普遍500+，雅思阅读8.0+
，熟练阅读经济学人等外刊。
我们专注服务对象：大一，大二，大三，大四学生。并且专注考试类型：大学英语四级CET-4, 六级CET-6, 研究生入学考试（英语一，二）我们每天通过公众号以及小打卡(
推荐
加入
)提供顶级期刊
段落精读
来不断提高英语能力，选择我们，选择相信！
L
unarexploration
Thereis now cast-iron evidence for wateron the Moon
段落精讲请扫下方图片二维码查看+
全文PDF加小编
VX
: elitezhich
。
The theory behind this idea is that the solar wind, which is composed largely of
protons
, the
nuclei
of hydrogen atoms, continuously
deposits
that element
into
the regolith. Some of this hydrogen then reacts with oxygen atoms present as part of lunar minerals. That leads to the creation of
hydroxylradicals
. When a
micrometeorite
hits the Moon, the impact vaporises the regolith. Everything is lifted into space, where the hydroxyls combine to form water molecules. These molecules are then encapsulated within drops of rapidly cooling
regolith
as it falls back to the surface.
a very small piece of matter with a positive electrical chargethat is in the central part of an atom
质子
;
nu
·
cle
·
us
noun (plural nuclei)
the central part of an atom, made up of neutrons , protons , andother elementary particles
（原子）核
to leave a layer of a substance on the surface of something, especiallygradually
使沉积
:
•
As theriver slows down, it deposits a layer of soil.
河水流速变慢时，一层泥沙便沉积下来。
mi
·
cro
·
me
·
te
·
or
·
ite
noun
a meteorite so small that it can pass through the earth'satmosphere without becoming intensely heated
微小陨石
regolith
noun [mass noun] Geology
the layer of unconsolidated solid material covering the bedrockof a planet
浮土
加入小打卡千人打卡群，聆听完整外刊讲解版,带全文翻译，
苹果用户支付出现问题加小编微信：elitezhichi
为了更好的为大家提供服务与帮助，给大家提供一个学习交流的平台，我们准备组织新一期早起鸟打卡交流群，你们当天遇到疑难问题都可以进行提问，每天都会有大组长为大家解答疑惑，并督促大家坚持学习英语。
美国专业播音员为你朗读原文，
用真实语料提高听说读写。
