Alfameter
阿尔法仪(用光线反射法测量拉丝模模孔锥角用)
🗣️ 情景例句
I don't have time to take any elective classes.
我没有时间去上任何选修课。
How far is it from here to the bus stop?
到公共汽车站有多远？
After years of conditioning, most of us have developed an unshakable faith in railway timetables.
经过多年的适应，大多数人对火车时刻表产生了一种不可动摇的信念。