The key thing with any shoe, high or flat, is that it should fit properly, not pinch your toes and have a degree of flexibility.

任何高跟或平底鞋的关键是要合脚，不要夹着脚趾，要有一定的灵活性。

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Chapter 4 specifies the key technology analysis of task-level software debugging agent, including the pinch point of the task-level debugging technology and the solution.

第四章是任务级软件调试代理关键技术分析。内容包括实现任务级调试主要技术难点和解决方案。

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Throw in a pair of key mid-season pickups like veteran pinch hitter Matt Stairs and pitcher Joe Blanton, who started and won game four, and the below-the-radar support system was fully in place.

FORBES: Major League Baseball