The NNSA says the new features are necessary for the small amount of time such weapons spend being trucked from site to site, to eliminate the threat of hijacking.是什么意思_The NNSA says the new features are necessary for the small amount of time such weapons spend being trucked from site to site, to eliminate the threat of hijacking.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句