相关clenching的文学知识

Don'tapproachlifebyclenchingyourfists.Areyouclenchingyourfistsorisyourheartracing?Keepyourhandsandjawrelaxed;noclenching.Youkeptmeupallnight,Icouldhearyou'reclenchingandgrindingyourteeth.Raiseandext...