Pacemaking
n. 定步速, 当标兵, 起搏
🗣️ 情景例句
and the problem is that it's set up primarily for kids to play.
而问题是它主要是让孩子们去玩的。
The daily rate is $32.00 plus 39 cent per mile.
日租金32美元，每英里外加3角9分。
What was the population of the more developed countries in 1950?
1950年较发达国家的人口是多少？