Peritrochoid
外摆线圆
🗣️ 情景例句
Let's make it 6:00 at your place, is that OK?
咱们六点在你们家见，好吗？
Blind men can judge no colours.
不宜问道于盲。
It was the first joy I had known for years.
我豁然开朗了。这是我多年来第一次感到高兴的事了。