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emery
關於emery的翻譯
金剛砂
來源 : pydict
emery definition
a
hard
grey-black
mineral
consisting
of
corundum
and
either
hematite
or
magnetite;
used
as
an
abrasive
(especially
as
a
coating
on
paper)
來源 : wordnet
來源 : Trending