Mathlete
参加数学竞赛的人
🗣️ 情景例句
He is making good progress after his operation.
他动过手术后病情大为好转。
Why?
为什么？
These movements are controlled by the trainer with the metal-pointed stick,
训练员要用有锋利金属尖的长棒控制它的这种举动，