Centroid
n. 质心\\n[机] 瞬心线
🗣️ 情景例句
When is check-out time?
什么时候必须结帐和离开宾馆？
Will you go shopping with me?
你跟我去买东西吗？
As it is, they have been drilling for sixteen hours and they still have a long way to go.
实际情况是，他们已连续钻了16个小时了，但离钻透还早着呢。