Polyformaldehyde
聚甲醛
🗣️ 情景例句
A grandfather clock would look great in the den.
休息室里放一座落地钟会很漂亮的。
The cask savours of the first fill.
先入为主。
Thank you .It was very nice of you to help me.
谢谢你帮我，你真好。