1. The spokes of the wheel diverge from the nub. 轮辐从轮毂向四周分出。
2. She respected Andrew's wisdom, his knack of going directly to the nub of any situation. 她遵重安德鲁的才智和他在任何情况下都能一语道破的本领。
3. "The nub of it is that robots do not have the necessary discriminatory ability. They can't distinguish between combatants and civilians, " he said. 他还说:“要点是:机器人本身并不具备辨别的能力,它们无法区分士兵与平民。”
英英解释
n.
1. a small lump or protuberance
2. a small piece
3. the choicest or most essential or most vital part of some idea or experience