let loose

动词 let loose:

1. express audibly; utter sounds (not necessarily words)
   同义词：utter, emit, let out
2. turn loose or free from restraint
   同义词：unleash, loose

1. The teacher told Xiao Li that someday she was going to let loose and tell him what she thought of him.
   老师告诉小李说，总有一天她要痛痛快快地说出她对他的看法。
2. I do now let loose my opinion.
   我现在确实发表了我的意见。
3. Just close your eyes and let loose your imagination.
   闭上眼睛，海阔天空地遐想一番吧。