Echelogram
阶梯光谱照片
🗣️ 情景例句
The news reporter said that an airplane has just crash landed.
新闻播音员说一架飞机在着陆过程中坠毁了。
It's been a bad day.
今天糟透了。
On the last day I made a big decision.
到了最后一天，我作出了一项重大决定。