Polyesterification
n. 聚酯
🗣️ 情景例句
I'm in charge of the sales department.
我主管销售部。
You were wise to keep away from him.
你避开他是明智之举。
An aeroplane offers you an unusual and breathtaking view of the world.
飞机上，你可以观察世界上非同寻常的奇妙的美景。