Reciprocant
微分不变式
🗣️ 情景例句
Macro adjustment is needed in a market economy.
市场经济需要宠观调控。
I ate 2 peaches.
我吃了两个桃子。
You either starve to death or live like Robinson Crusoe, Waiting for a boat which never comes.
要么饿死，要么像鲁滨孙那样，天天盼船来，却总没见船影。