edge grip

例句：

1. 1. He tightened his grip on the rope to prevent it from slipping.
   他紧紧地握住绳子以防止它滑落。
2. 2. The climber used a special edge grip to ascend the rock face.
   攀岩者使用一种特殊的边缘握紧来攀登岩石表面。
3. 3. During the race, he maintained an edge grip to maintain his speed.
   在比赛中，他保持了边缘握紧以维持他的速度。