Reflection spectrum
[化] 反射光谱
🧩 词语组成解析
🗣️ 情景例句
We can write letters. It's cheaper than calling.
我们可以写信就好，那比打电话便宜。
Please take your time.
请慢慢来。
acquired this man-made disease as a pestilence.
而欧洲自己却染上了这种人为的瘟疫般的疾病。