Decision theory
[计] 判定理论
🧩 词语组成解析
🗣️ 情景例句
why you have so many problems with math.
为什么你在数学方面有那么多问题。
We used to go to the movies about once a week.
我们过去常一个星期大约去看一次电影。
It is being repaired by a friend of my father's.
父亲的一个朋友正在修理这件乐器。