常見(jiàn)例句雙語(yǔ)例句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.囌-17以及其出口型囌-20和囌-22是囌聯(lián)及世界上另外12個(gè)國(guó)家的中堅(jiān)力量。 返回 su ussr