柯林斯詞典birr /b??/ [美國英語] 1. V to make or cause to make a whirring sound 發(fā)出呼呼聲2. N a whirring sound 呼呼聲birr /b??/ N 1. N the standard monetary unit of Ethiopia, divided into 100 cents 比爾; 埃塞俄比亞貨幣單位 返回 birr