Prevalences
(prevalence 的复数) n. 普遍, 流行, 广泛\\n[医] 流行, 盛行
🗣️ 情景例句
Hello, my name is Li Ming and we have a reservation for party tonight.
喂，您好。我叫李明，我们在你们这预定了今晚聚会。
I'm not kidding, I love you!
我是认真的，我爱你！
For our purposes, we are concerned only with one kind of cost----
就我们的目的而言，我们只关心一种费用-