Poly(tetramethylene adipamide)
[化] 聚己二酰丁二胺; 尼龙-46
🗣️ 情景例句
That's true.
正是如此。
He who wants a mule without fault,must walk on foot.
指望驴子无缺点，只有自己徒步行。
She's been there for two months. She's been there since September.
她进校有两个月了。她自9月份起便在那儿学习了。