Spectrograde
光谱级(的), 光谱纯(的)
🗣️ 情景例句
Make sure you file this invoice straight away; I don't want it being misplaced.
记得现在就把发票给开了，我可不想弄错了。
Can you picture yourself on a boat, on a river?
你能想象你自己泛舟河上的情景吗？
We'll wait and see what they say.
看看他们怎么说吧。