🧩 词语组成解析
polymeric
[[ˌpɔli'merik]]
a. 聚合的, 聚合体的\\n[医] 聚合的
amide
[['æmaid]]
n. 氨化物, 酰胺\\n[化] 酰胺
🗣️ 情景例句
Thank you.
谢谢。
Did you wash this yourself?
你自己亲自洗了这个？
Suddenly, they heard a voice behind them.
突然他们听到身后有声音。