v. make loose or looser
v. make less dense
v. become loose or looser or less tight
vt. 放松, 松开, 解除
vi. 变松, 松弛
1. Please loosen the lid so I can open the jar.
请松开盖子，这样我就可以打开罐子了。
2. He decided to loosen his tie after a long day at work.
他决定在工作了一整天后松开领带。
3. Stretching can help to loosen your muscles before exercising.
拉伸可以帮助在锻炼前放松肌肉。