英汉例句雙語例句In the summer of 1970, the SST race was three-way, with Russia's Tu-144 and the still-on-the-drawing-boards Boeing 2707-300 joining the legendary Concorde.1970年夏天,有三路兵馬征戰超音速運輸機領域,俄羅斯的圖-144、仍然在設計堦段的波音2707-300以及協和超音速客機。boeing 2707更多例句