Polyamides
[化] 聚酰胺; 尼龙
🗣️ 情景例句
Yes, I'm ready.
是的，我想好了。
It is one thing to speak much and another to speak pertinently.
话讲得多是一回事，讲得恰当是另一回事。
I had to sit up all night writing the report.
我不得不熬通宵写报告。