B. d.
[医] 棱底向下, 颊[侧]远中的
🗣️ 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。
I'm too worried.
我太担心。
It was over 30 feet in length and had a 2,500-horsepower engine.
它的车身长30英尺，有一个2，500 马力的发动机。