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Hansen
['hænsən]
例句/造句/用法:
Bouvard
answered
that
the
idea
had
occurred
to
him
;
indeed
,
he
had
had
some
correspondence
in
reference
to
it
in
1829
with
Hansen
,
an
authorit
y
on
planetary
perturbations.
李貝.
西洋科學史
.
艾弗里校對
