Knoppern
栎鞣汁
🗣️ 情景例句
This job is back-breaking work.
这份工作强度很大。
Old wood is best to burn, old horse to ride.
老柴好烧，老马好骑。
In their efforts to persuade us to buy this or that product, advertisers have made a close study of human nature and have classified all our little weaknesses.
做广告的人在力图劝说我们买下这种产品或那种产品之前，已经仔细地研究了人的本性，并把人的弱点进行了分类。