Polyacetal
[化] 聚缩醛
🗣️ 情景例句
Do you remember that old desk?
还记得这张旧桌子吗？
Telling your troubles is swelling your troubles.
诉说烦恼等于增加烦恼。
He will take part in an important race across the Atlantic.
他将参加一次重大的横渡大西洋的比赛。