Spectrograde
光谱级(的), 光谱纯(的)
🗣️ 情景例句
What do we do for a midnight snack?
我们夜宵吃点什么？
What company do you work for?
你在哪家公司做事？
Though the sound could be heard clearly, it took me a long time to react.
虽然声音听得很清楚，但我过了好一会儿才作出反应。