Smudge the outline using a cotton-wool bud.用一根棉签把轮廓抹花。He gently dabbed at his cuts with a piece of cotton wool.他用一块药棉轻轻按了按伤口.I tried to say something, but my mouth was full of cotton wool.我想说句话, 但我嘴里塞满了药棉....
His theories met with general discredits.他的理论遭到普遍怀疑.This newspaper story discredits the politicians.这个新闻报纸使政治家们丢脸.His foolish behavior discredits him seriously.他的愚蠢行为严重败坏他的名声....