Spectroanalysis
光谱分析
🗣️ 情景例句
Make sure everybody is at that meeting.
要确定每一位都出席这次会议。
I enclosed some photographs in my letter.
我在信封里装了一些相片。
No, it isn't. It's a Japanese car.
不是。那是一辆日本产的小汽车。