Poid
形心(曲线), 拟正弦线, 膺正弦线, 瞬心轨迹
🗣️ 情景例句
Dean Rafer called me today.
Rafer主任今天打电话给我。
Truth will prevail.
真理必胜。
The bottle really does contain perfumed mud.
瓶里装的的确是香水泥。