放松 relax; slacken; loosen; uncage 放松警惕 relax one's vigilance; 放松世界观的改造 slacken one's efforts to remould one's world outlook; 我必须运动一下, 放松放松肌肉。 i must take some exercise and loosen up my muscles.; 放松臂 release arm; 放松功 psychosomatic relaxation; 放松活动 [体育] relaxation exercise; limbering-up exercise