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
Where did you come from?
你从哪里来？
Seven percent would be possible for orders for, say, 500 or more.
订购500台或500台以上都不得有可能给予7%的折扣。
There's no need for that. We'll have dinner another time.
不必为那件事惭愧。我们改个时间再共进晚餐吧。