loosenvt.松开;放松;放宽vi.变松;松弛
loosen coal疏煤
loosen soil松散土
loosen ties削弱关系
loosen stuff疏松砂岩
loosen grain松散纹理
loosen teeth松动牙
Loosen tooth松动牙
loosened cake松饼
loosen a knot把结解开
loosen a boat(取下系船索)解开小艇