Nitrocolors
含硝基生色料团化合物
🗣️ 情景例句
We were exposed to the latest theories on child care.
我们接触过有关幻儿保育的最新理论。
The pressuer of work was too great for him.
工作压力使他承受不了。
What a lot of invitations to send out!
要寄出的请贴真多呀！