NASA ['næsə]以下由轻松背单词网站提供
单词级别附加级基本释义美国国家航空和航天局参考例句Why has this article, this admission from NASA, emerged at this time? 为什么NASA承认(事实)的这篇文章会在这个时候出现呢?Fast enough, NASA says, to prevent widespread contamination and save lives. NASA认为只有足够快才能预防炭疽的遍布污染和拯救生命。 推荐阅读 |