Background spectrum
[化] 本底谱线图
🧩 词语组成解析
🗣️ 情景例句
You must be joking.
你肯定是在看玩笑。
It won't take much time.
不会花很长时间的。
It is nine o'clock.Mr.Sawyer usually reads his newspaper at night.But he's not reading his newspaper tonight.
现在是9点钟。索耶先生通常是在晚上看报，但今天晚上他没看报。