Spectrograde
光谱级(的), 光谱纯(的)
🗣️ 情景例句
It's extremely good of you to do this for me.
你帮我做了这件事，真是太好了。
Ignorance is bliss.
眼不见为净。
Is this from our last shipment?
这是上次叫的货吗？