Unit circle
单位圆
🧩 词语组成解析
unit
['ju:nit]
n. 单位，单元;装置;个体;[数]单位数;
🗣️ 情景例句
I've been saving them for today.
我一直留着等今天才戴。
The little boy left home for his first day at school.
那个小孩第一天离开家去上学。
I can't afford a new car.
我买不起一部新车。