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单词
krypton
释义
krypton
kryp
ton
/
ˈkrɪptɑn
/
noun
[uncountable]
(
symbol
Kr
)
Etymology
ETYMOLOGY
krypton
Origin:
1800-1900
Greek
kryptos
hidden
science
,
chemistry
a gas that is an
element
, found in very small quantities in the air
随便看
firewater
firewood
firework
firing line
firing squad
firm
firmament
firmly
firmness
firmware
first
first aid
first-aid kit
First Amendment
First Amendment, the
first base
First Battle of Bull Run, the
firstborn
first class
first-class
First Continental Congress, the
first cousin
first-degree
first derivative test
first-edition
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更新时间:2025/11/2 10:59:49