Polyacetals
聚缩醛(树脂)
🗣️ 情景例句
Do you like the dress?
你喜欢这套衣服吗
I won the most valuable prize!
我赢得了最高的奖赏！
A little. He fell and hit his leg on a table.But he's OK now.
伤了点儿。他跌倒了，腿撞在桌子上。但是现在已经好了。