Polyacetaldehyde
聚乙醛
🗣️ 情景例句
My favorite food is pork chops.
我最喜欢的食物是小猪排。
I'm afraid I've let myself get run-down. I've been working too hard.
我似乎弄坏身体了。最近太过劳累。
I have a surprise for you.
我有一个意想不到的东西给你看。