Regressivity
燃烧面递减性
🗣️ 情景例句
Ah. OK. That's a dollar and thirty cents change.
啊 ，好啦。这是一美元三毛零钱。
How old do you have to be to vote in the national elections?
你要多大才能在大选中投票？
Pollution is the price we pay for an overpopulated, over industrialized planet.
污染就是我们为这个人口过密，过度工业化的星球所付出的代价。