您要查找的是不是：
- 攥紧拳头clench one's fist
- 他攥紧拳头怒视敌人。He clenched his fists and glared at the enemy.
- 医生替他擦洗伤口时，他痛得攥紧拳头。He clenched his fists in agony as the doctor cleaned the wound.
- 他的双手反复地攥紧又松开。His hands continued to clench and unclench.
- 紧固件fastening piece
- 紧的tight
- 攥grasp
- 拧紧screw down
- 夹紧clamp
- 紧固tightening
- 要紧urgent
- 压紧compress
- 紧靠abut upon
- 拉紧tense
- 锁紧lock(-)in
- 紧随at one's heels
- 绷紧tighten
- 不紧loosely
- 锁紧螺母locknut
- 紧致compact; tightness
