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单词
ultraclean
释义
WordReference Random House Unabridged Dictionary of American English © 2024
ul•tra•clean
(ul′trə klēn
′
),
USA pronunciation
adj.
extremely clean, esp. free of germs:
an ultraclean laboratory.
ultra
- +
clean
1965–70
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更新时间:2025/12/3 8:49:59