Martingales
(martingale 的复数) n.手法,诀窍
🗣️ 情景例句
Well, you can write to her.
嗯，你可以写信给她。
Generally speaking, it's cheaper but slower to ship goods by sea than by rail.
总的来说，海运比铁路运输更便宜，但速度慢一些。
Does he have a temperature, doctor?
他还发烧吗，医生？