Warning: file_put_contents(/www/wwwroot/ppbbbu/n94.cn/cache/16da48d50b79535c88f9d05b838b15ec.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55 breathing valve是什么意思，breathing valve的翻译，breathing valve音标、读音、用法和例句_94生活常识网有道词典
One hypothesis suggests that by closing tiny breathing-valves in their exoskeletons called spiracles, insects prevent evaporation. 有一種假說認爲崑蟲可以通過關閉外骨骼上微小的呼吸閥門（氣孔）來防止蒸發。