Problemist
n. 棋题设计(或研究)家
🗣️ 情景例句
and tell him we'll see him in a couple of months.
告诉他过几个月我们再去找他。
He is a big figure in the business world.
他在商界是一位很有威望的人。
In this way, we have learned all that we know of the laws of astronomy,
例如，用这种方法，我们完全掌握了天文学的规律。