绷紧

例句：

1. 1.He tightened the screws on the door to make sure it was secure.
   他拧紧了门上的螺丝，确保门是安全的。
2. 2. The belt is too tight; I need to loosen it a bit.
   腰带太紧了，我需要松一点。
3. 3. She tightened her seatbelt before taking off her seat.
   她系好安全带再离开座位。