Spectrograde
光谱级(的), 光谱纯(的)
🗣️ 情景例句
Are you doing anything tonight?
今晚有安排吗？
When he moved to France, the children adapted very well.
他移居法国后，孩子们很适应那里的生活。
At the front of the classrooom.
在教室前排。