SS-20造句怎麼寫

In this photo, a poster purporting to lay out the true size of the USSR's collection of SS-20s, a type of ICBM, is displayed during testimony before the US Senate Foreign Relations Committee.

此照片是在美國參議院外交關係委員會舉行聽*時展示的一幅招貼，揭示了蘇聯SS-20洲際*道導*的規模。