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单词
actinium
释义
actinium
/ækˈtiniəm/
n. Chem.
a radioactive metallic element of the actinide series, occurring naturally in pitchblende (symbol
符
Ac
)
【化】
(
化学元素
)
锕
[Greek
aktis -inos
‘ray’ + -IUM]
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grandiosely
grandiosity
grand jury
grandly
grandma
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grand master
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grandmother clock
grandmotherly
Grand National
grand-nephew
rousable
rouse
rouseabout
rouse oneself
rouser
rousing
rousingly
roust
roustabout
roust around
rout
rout
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更新时间:2026/7/12 0:08:18