●ˈweigh on sb/sth ( ˈweigh upon sb/sthmore formal) to make sb feel worried or depressed; to be a difficult duty or task for sb/sth使担忧；使沮丧；加重…的思想负担；对…是艰巨的任务◆The responsibilities are clearly weighing heavily on his shoulders. 他显然肩负重任，忧心忡忡。◆The debt burden weighs heavily on the government. 政府债务负担沉重。SYNburden sb/sth[v + prep]