pinning point

例句：

1. 1. The pinningpoint of the meeting was to discuss thebudget.
   会议的焦点是讨论预算。
2. 2. The scientistpinned his hopes on the new technology.
   科学家把希望寄托在新技术上。
3. 3. The company's success depended on its abilityto adapt to changing market conditions.
   公司的成功取决于其适应市场变化的能力。