单语范例（未经PONS编辑处理）
Again, if you can concentrate your attention to clenching and unclenching your toes, repeat this action.
www.her.ie Some patients feel non-existent fingers digging into an imaginary palm and suffer intense discomfort as they try, and fail, to unclench their illusory fist.
www.telegraph.co.uk Unclench is one of those words that evokes many different ideas and visuals for people, and it may mean something different for everyone.
www.theglobeandmail.com Normally, a person's hand will unclench when it's holding something that delivers a shock.
www.geek.com Through the use of this artificial visual feedback it becomes possible for the patient to move the phantom limb, and to unclench it from potentially painful positions.
en.wikipedia.org