基本解釋[地球科學(xué)]蘇聯(lián)英漢例句雙語例句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.蘇-17以及其出口型蘇-20和蘇-22是蘇聯(lián)及世界上另外12個國家的中堅力量。su ussr更多例句詞組短語短語su -USSR 蘇聯(lián)su ussr更多詞組專業(yè)釋義地球科學(xué)蘇聯(lián)