Warning: file_put_contents(/home/www/wwwroot/zidian/201990.com/cache/1a79bc968133b3d20906c1e573abedcd.txt): failed to open stream: No space left on device in /home/www/wwwroot/zidian/201990.com/index.php on line 55 su ussr是什么意思，su ussr的翻译，su ussr音标、读音、用法和例句_耀久九英英词典
Su-17 and its export variants Su-20 and Su-22 were the basis of the USSR’s aircraft as well as of 12 other countries of the world. 苏-17以及其出口型苏-20和苏-22是苏联及世界上另外12个国家的中坚力量。