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单词
berkelium
释义
ber·ke·lium
BrE
/
bɜːˈkiːliəm
/
,
/
ˈbɜːkliəm
/
NAmE
/
ˈbɜːrkliəm
/
noun
[
U
]
(
symbol
Bk
)
a
chemical
element
.
Berkelium
is
a
radioactive
metal that is produced artificially from
americium
and
helium
锫(放射性元素)
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fire-hydrant
fire hydrants
fire insults at
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firelighter
firelighter
firelighters
firelights
fire line
firelit
fireman
firemen
fire off
fire off sth
fireplace
fireplaced
fireplaces
firepower
firepowers
fire practice
fire practice
fireproof
fireproofed
fireproofing
fireproofness
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更新时间:2026/7/8 21:10:52