A bottle opener, door hinge, and stapler are all examples of third class levers.

开瓶器、门铰链和订书机都是第三类杠杆的例子。

The third class lever has below it at the end in the effort in the middle, all Jiu-Jitsu sweeps are examples of third class leavers.

第三级杠杆在它下面的末端中间用力，所有的柔术扫扫都是第三级杠杆的例子。