Cosmic microwave background
n. 宇宙微波背景; 散布于宇宙空间的微波辐射; 显示了自大爆炸之后; 宇宙在不断冷却的事实。
🧩 词语组成解析
🗣️ 情景例句
Once the film stops showing, they won't even remember your name.
一旦你的电影停播了，你也就会很快被人忘记。
Who answers suddenly knows little.
答得迅速，懂得不多。
but belongs to the air, travelling it may be six thousand miles to and from its northern nesting home, feeding its flown young as it flies,
在空中十分自如，可以飞行6，000英里，可以飞往北方做窝的老家，再从老家飞回；一边飞一边喂养会飞的雏燕，甚至在顶风时也能在气流中滑翔，似乎气流在帮它前进。