一: one丝: silk一丝笑意(微量,少许): a mere trace of a smile一丝笑容: a smile lit up one's face她脸上没有一丝笑容: there isn't a trace of a smile on her face一丝: a gleam of; isshi; spark面带笑意: one's face shows smiling mood带有玩笑意味的: tongue-in-cheek丰富她眼中的笑意: enrich that smile her eyes began一丝不差: exactly the same; not a bit difference; not the slightest difference; without the least difference一丝不错: all correct; be all true一丝不苟: be strict in one's demands; be conscientious and meticulous; be scrupulous about every detail; meticulously attentive; dot the i's and cross the t's; methodistic; neglect no detail; not to be the least bit negligent; thorough; (work) in a careful and thoroughgoing way; work with meticulous attention and conscientiously; work with the greatest care一丝不苟的: divcise; overcritical; precise; punctilious; scrupulous一丝不苟地: fastidiously; regularly; strictly; to the dot of an i一丝不挂: in nature's garb;be in the nude;be starknaked; buck naked; have nothing on; in a state of nature; in one's birthday suit; in one's skin; in the altogether; not to have a rag to one's back; not have a stitch on; strip to the buff; without a shred of clothing on; with noting on一丝不挂的: stark-naked一丝愁云: feeling of sadness; a cloud of sorrow一丝春意: a touch of spring一丝的微笑: a faint smile一丝光线: gleam一丝灰尘: a speck of dirt一丝亮光: a thread of light一丝微笑: a ghost of a smile一丝兴趣: a gleam of interest一丝一毫: a tiny [little] bit; an iota; a trace; one jot or tittle; the slightest; the smallest scrap of; the least bit 没有一丝一毫的差别 without the least difference