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单词 birr
释义
birr 1 (bûr)
n.
1. A whirring sound.
2. Strong forward momentum; driving force.
intr.v. birred, birr·ing, birrs
To make a whirring sound.

[Middle English bir, favorable wind, from Old Norse byrr; see bher-1 in the Appendix of Indo-European roots.]
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更新时间:2024/11/13 15:04:05