劍橋詞典abbreviation for Strategic Defense Initiative: a plan to defend the US from enemy nuclear weapons by destroying them in space 戰(zhàn)略防禦計(jì)劃（美國(guó)的一個(gè)太空防禦導(dǎo)彈計(jì)劃，又稱(chēng)“星球大戰(zhàn)”，Strategic Defense Initiative的縮寫(xiě)） 返回 SDI