trace词组,隐喻,短语

trace

tracetrace[treɪs],trace sth 'back (to sth)1.■to find the origin or cause of sth by following clues or evidence backwards from the present time探究事物的本源；追溯﹙到…﹚:Many different childhood illnesses can be traced back to certain foods.多种儿童疾病的起因都可追溯到某些食物。Boston has a large population that traces its roots back to Ireland.波士顿拥有一大批祖先在爱尔兰的人。She can trace her family back as far as the 13th century.她能把自己的家族追溯到13 世纪之遥。[OBJ]roots,origins,history[G]v+n/pron+adv ◆ v+adv+n,trace sth 'out 2.■to draw a shape or a mark clearly清楚地勾画﹙或标出﹚:I traced out our route on the map.我在地图上描出我们的路线。( figurative)She traced out how working patterns had changed in the last 50 years.她描绘了过去50 年中工作模式的变化情况。[G]v+n/pron+adv ◆ v+adv+n