关于恐龙为何灭绝的英文短文内容关于恐龙为何灭绝,字数在60左右,最好单词简单一点,我还要背呢.

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关于恐龙为何灭绝的英文短文内容关于恐龙为何灭绝,字数在60左右,最好单词简单一点,我还要背呢.关于恐龙为何灭绝的英文短文内容关于恐龙为何灭绝,字数在60左右,最好单词简单一点,我还要背呢.关于恐龙为何

关于恐龙为何灭绝的英文短文内容关于恐龙为何灭绝,字数在60左右,最好单词简单一点,我还要背呢.
关于恐龙为何灭绝的英文短文
内容关于恐龙为何灭绝,字数在60左右,最好单词简单一点,我还要背呢.

关于恐龙为何灭绝的英文短文内容关于恐龙为何灭绝,字数在60左右,最好单词简单一点,我还要背呢.
Earth's crust have been outside of the asteroid impact.So that the crust comes from the breakdown of the inner core of a huge eruption of hot magma out.Weak on the crust of an enormous force,so that the crust there have been a strong change.His The performance is great earthquakes and volcanic eruptions.I think because of the growth of the dinosaur era,inclusive of the surface of the Earth's crust is thin and fragile.Frequent strong earthquakes and volcanic eruptions.

好难啊,我还没学到呢

没学过。。