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30-50百万
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1.
"The
collision
of
India
and
Africa
with Eurasia between
30
and
50
million
years
ago
closed
an
ocean
basin
known
as
Tethys
, " says
Silver
.
30
-
50
百万
年
之前
的
印度
和
非洲
板块
和
欧
亚
板块
的
碰撞
,
闭合
了
我们
所谓
的
特提斯
大洋
盆地
。
sān shí gàng wǔ shí bǎi wàn
nián
zhī qián
de
yìn dù
hé
fēi zhōu
bǎn kuài
hé
ōu
yà
bǎn kuài
de
pèng zhuàng
,
bì hé
le
wǒ men
suǒ wèi
de
tè tí sī
dà yáng
pén dì
。
xbqawl.blog.163.com