Evolvent
渐开线, 切展线
🗣️ 情景例句
The whole house needs re-painting.
整个房间需要重新粉刷。
I just dropped in to say goodbye.
我只是来告别的。
and another group were disturbed for an equal period of time but when they were no exhibiting eye-movements,
另一组人也是连续几夜被叫醒，但是在眼球队没活动时被叫醒的。