The Bush administration has long held that Iran has a covert nuclear-weapons program.But it has refrained from taking the issue to the U.N.是什么意思_The Bush administration has long held that Iran has a covert nuclear-weapons program.But it has refrained from taking the issue to the U.N.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句