pullstring造句

Charmin'Chatty spoke different phrases when a pullstring attached to a " chatty ring " protruding from its upper back was pulled.
More generally and commonly, a pullstring can be any type of string, cord, rope, chain, or cable attached to an object in some way used to pull or mechanically manipulate part of it.
A pullstring ( pull string, pull-string ), pullcord ( pull cord, pull-cord ), or pullchain ( pull-chain, pull chain ) is a string, cord, or chain wound on a spring-loaded spindle that engages a mechanism when it is pulled.
It is played by holding the free end of the string known as the handle ( usually by inserting one finger into a slip knot ) allowing gravity or the force of a throw to spin the yo-yo and unwind the string ( similar to how a pullstring works ), then allowing the yo-yo to wind itself back to one's hand, exploiting its spin ( and the associated rotational energy ).
It's difficult to find pullstring in a sentence. 用pullstring造句挺难的