Poid
形心(曲线), 拟正弦线, 膺正弦线, 瞬心轨迹
🗣️ 情景例句
That was fast.
而且又快。
The scalded cat fears cold water.
一朝被蛇咬，十年怕井绳。
When the archaeologists reconstructed the fragments, they were amazed to find that the goddess turned out to be a very modern-looking woman.
考古工作者把这些碎片重新拼装起来后，惊奇地发现那位女神原来是一位相貌十分摩登的女郎。