Centroids
(centroid 的复数) n. 质心\\n[机] 瞬心线
🗣️ 情景例句
and wrote to his wife Martha.
给他妻子Martha写信。
Omelets are not made without breaking of eggs.
鸡蛋不打破，蛋卷做不成；不甘愿吃苦，则预期效果达不到。
What's that? asked Lucy. She pointed at a strange thing with three legs and a strange top. It was made of metal.
“那是什么？”露西说。露西指着一个有三条腿和一个奇怪的顶部的怪怪的东西问。是用金属造的。