Cách sử dụng
The word 'tighten' means to make something more firm or secure by making it harder to move or loosen. It is commonly used when talking about fastening bolts, straps, or screws to ensure that they don't come loose. For example, you might tighten the bolts on a bike tire to make sure they don't fall off while riding. Additionally, 'tighten' can also mean to reduce or restrict something, such as tightening rules or regulations to make them more strict.