Phosgenation
光气化(作用)
🗣️ 情景例句
The sketches for the cover of the new doll book?
是新玩具书的封面设计吗？
Don't forget to put stamps on the letter before you mail it.
不要忘记在寄信以前把邮票贴在信封上。
The action he takes varies according to the nature of the complaint.
司法特员采取的行动因意见的性质不同而有所不同。