double grip的用法和样例：
例句
- The questionnaire also asked questions in regards to their ability to grip objects and maneuver out of a chair.
问卷还提出了与他们抓握物体和离开座椅时的身体控制能力有关的问题。 - Another example that underscores the difference between climbing and training for climbing is the way in which you grip the rock.
另外一个能揭示攀岩和训练有所区别的例子在于你抓握岩石的方式。
