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单词
rockoon
释义
WordReference Random House Unabridged Dictionary of American English © 2024
rock•oon
(rok
′
o̅o̅n, ro ko̅o̅n
′
),
USA pronunciation
n.
Rocketry
a rocket launched from a balloon at a high altitude.
rock
(
et
1
) + (
ball
)
oon
1950–55
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geometricize
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更新时间:2025/7/23 17:43:44