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n (1)(尼龍，棉，毛)線(thin strand of cotton，wool，silk，etc esp when used for sewing)[C，U]：loose/coloured～s 松散的線/花色線;cotton/nylon/gold～棉紗/尼龍/金線;a needle and～針線;sew on the buttons with～用線縫扣子;

(2)細長的東西(anything that resembles a thread in thinness，fineness，etc) [C] (fig)：a～of light/smoke 一絲光/一縷煙;fine～s of red in the marble 大理石中的紅色細紋;

(3)線索，頭緒(sth that runs through sth else bringing the parts of it together) [C] (fig)：the～s of a debate 辯論中各種論點;pick/take up～(s) (中斷后)按原脈絡接著進行下去;lose the～of the argument/a story/what sb is saying 沒抓住論點/故事/某人講話的頭緒;

(4)螺紋(spiral ridge around a screw)[C]：a worn～磨損的螺紋;

hang by a single thread 千鈞一發(fā)，垂危：Her life is hanging by a single～. 她生命垂危。

vt (1) 1)穿線過……(pass one end of a thread through the eye of a needle or similar device)[T+n，T+n+prep]：～a needle(用線)穿針;～the wire through the opening 把金屬線穿過那個孔; 2)用線穿起來(connect by running a thread through)：～pearls/shells/beads together to make a necklace(用線)把珍珠/貝殼/小珠子穿成一串項鏈;

(2)把(影片，磁帶等)裝好待用(pass a tape or film，etc into or through a device)[T+n，T+n+prep，T+n+adv]：～the motion-picture projector/a camera 為放映機裝影片/照像機裝膠片;～the film to a projector/wire through the pulley 把影片裝到放映機上/金屬線穿在滑輪上;

thread one's way through 穿過，擠過：～one's way through the crowd with difficulty 費力地穿過擁擠的人群;

→′thread-like adj 像線的;細長的;′threadbare adj 磨薄的;破的;陳腐的;

【辨異】thread 與cord、rope、string和wire的區(qū)別見CORD。