Polycaprolactam
聚已内酰胺, 尼龙-6
🗣️ 情景例句
Where there's smoke, there's fire.
事出必有因，无风不起浪。
That trial is not fair where affection is the judge.
法官动感情，审判难公正。
What's the point of going to college?
上大学有何用？