English Version(英文版)
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EBooks(电子书)
Averages
['ævərɪdʒ]
例句:
I
have
endeavoured
to
test
this
numerically
by
averages
,
and
,
as
far
as
my
imperfect
results
go
,
they
confirm
the
view
.
查尔斯·达尔文.
物种起源
.
整理:怀亚特
