firebreak的复数形式怎么拼写？

n.防火道...

firebreak的音标：firebreak的英式发音音标为：['faɪəbreɪk]firebreak的美式发音音标为：['faɪərbreɪk]...

So the effective structure of the firebreak belt in the ridge mountain was the sparse structure.所以,山脊防火林带的有效结构为疏透结构.The proofing efficiency is closely correlated with the wind weather area of the firebreak tree belt.防火林带...