-(形容心事重重的样子)bendthebrows;Afrownneverleftone'sface.;browscontractedwithoutrelaxation;contortone'sfeatures;frowningrief;knitthebrows;knittingone'sbrowsinanxiety;lookblue;(He)lookedtroubled,andevenfrowned.;loweringeyebrows;One'sknittedbrowsdidnotrelax,norone'sgloomyfeatureslighten.;withfrownofanxiety;withknittedbrowsinworry