Arithmetic series
等差级数
🧩 词语组成解析
🗣️ 情景例句
He spends too much money on his hobbies.
他在爱好方面花了很多钱。
I'm going to show him how to speak Spanish.
我正要指点他如何讲西班牙语。
Many of the cars broke down on the course and some drivers spent more time under their cars than in them!
很多汽车在途中就抛了锚，而有些驾驶员花在汽车底下的时间比坐在汽车里面的时间还长。