擰緊的用法和樣例：
例句
-
這個螺栓已經壞了，不能擰緊了，但是我還未買來新的之前暫時再用一下。
The bolt is worn and not an exact fit but it will serve its turn until I can buy a new one. -
他擰緊了螺絲。
He tightened the screws up. -
防松螺母常指擰緊在另一個螺母上的防止其鬆動的細螺母
A usually thin nut screwed down on another nut to prevent it from loosening. -
這螺絲釘需要再擰緊些。
This screw needs tightening.
