Cosmic rayl
[建] 宇宙(射)线
🧩 词语组成解析
n. [物]瑞利(比声阻抗的单位)
🗣️ 情景例句
He didn't get a thing to eat.
他什么也没有吃。
It has been a great year for all of us.
过去的一个，对我们大家来说，是辉煌的一年。
We had some shoes like those a month ago,but we don't have any now.
一个月前我们有这要的鞋。但是现在没有了。