名詞 tightening:

1. the act of making something tighter

動詞 tighten:

1. make tight or tighter
   同義詞：tighten, fasten
2. become tight or tighter
   同義詞：tighten
3. restrict
   同義詞：stiffen, tighten, tighten up, constrain
4. narrow or limit
   同義詞：reduce, tighten

1. The government is tightening up the driving laws.
   政府方面正抓緊駕駛法規(guī)的施行。
2. The police are tightening up on drunken driving.
   警方目前采取嚴厲手段對付醉酒駕車行為。
3. There's too much travel on the brake, it needs tightening.
   制動器太松了，需要調緊。
4. This screw needs tightening.
   這螺絲釘需要再擰緊些。