Polyamide
[化] 聚酰胺
??? 情景例句
A good marriage takes work and shouldn't be based on feelings alone.
一段好的婚姻要用心去經營，而不是僅僅建立在感情的基礎上。
Experience is the mother of wisdom.
智慧來自經驗。
I don't understand! What do you mean? asked Mrs Brown.
“我不懂！你說的是什么意思？”布朗夫人問道。