Warning: file_put_contents(/www/wwwroot/ppbbbu/n94.cn/cache/e10aab42f19b87feb05654d549ef0f1a.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55 protractility是什么意思，protractility的翻译，protractility音标、读音、用法和例句_94生活常识网有道词典
when the upper lip is connected to the snout by a frenum, the two are continuous and the upper jaw is restricted from being protractile; 上嘴唇被一个系带连接到吻部，两者是连续的，而上颌则是被局限不能伸出的；