Rydberg transition
[化] N-R跃迁
🧩 词语组成解析
[化] 里德伯
🗣️ 情景例句
I was when I first came to the United States.
当我刚到美国来的时候是感到有点紧张。
No man learns but by pain or shame.
不经痛苦羞辱，难以取得教训。
In the tree there is a bird.
树上有一只鸟。