1. Don't clench your fists because it can lead to tightening the arms, shoulders, and neck. 不要握紧你的拳头，因为它会导致手臂、肩膀和脖子紧绷。
2. They leap to their feet, clench fists and let out long screams, clawing at the ground and air. 他们跳起来，握紧拳头，发出长长的尖叫声，抓向地面或空中。
3. The next time you're faced with a choice that takes self-control, clench your fist or firm that bicep. 下次当你面临需要自我控制的选择时，握紧你的拳头或收紧你的二头肌。
4. The next time you're faced with a choice that takes self-control, clench your fist or firm that bicep. Your will might firm up. 下次当你面临需要自我控制的选择时，握紧你的拳头或收紧你的二头肌。你的意志也会坚强起来。
5. In dangerous times, we clench and squint at the deal that looks too good to miss, suspecting that it must be too good to be true. 在危险的时期，我们紧握拳头，眯着眼睛看那些看起来好得不能错过的交易，怀疑它简直好得难以置信。
