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n (1)記(符)號(mark，symbol，etc used to represent a known meaning)[C]：the～s for add，subtract，multiply and divide 加減乘除的運算符號;the mathematical～s 數(shù)學(xué)符號;the minus/multiplication～減/乘號;～s of military rank 軍銜的標記;as a～of danger 作為危險的標志;〖同〗mark，symbol，figure;

(2)(招，標，指示)牌(notice set up to give information，direction，warning， etc)[C]：a road-/shop-/pub-～路牌/商店招牌/酒店招牌;traffic/road～s 交通標志;hang a～on the door 門上掛一個指示牌;The～says，“No Admittance!” 牌子上寫著“嚴禁入內(nèi)!”〖同〗signboard，signpost，guidepost;

(3)(手，頭等的)示意動作，手勢;信號(movement or gesture (of one's hand，head，etc) used to mean or represent sth)[C]：put one's finger to one's lips as a～to be quiet 把手指放到唇邊示意要安靜;the～of the cross劃十字;give the go-ahead～發(fā)出準許的信號;give sb a～to leave示意某人離開;make a～to sb to keep still 示意某人保持安靜;The winner made a thumbs-up～. 獲勝者翹起拇指表示勝利?！玪anguage 手勢語;〖同〗signal，motion，gesture;

(4)跡象，征兆(sth suggesting that sth or sb is present or exist or sth is about to happen)[C][N (of)]：a～of heart disease 心臟病的征兆;～s of improvement/sales increasing 改善/銷售增長的跡象;no～s of life 無生命的跡象;show～s of being tired 顯出疲勞的跡象;Tom gave no～whether he agreed or disagreed. 湯姆沒有表示同意或不同意?！纪絠ndication;

v (1)做手勢，發(fā)信號(make a sign;signal)[無pass：D+to+n+that，D+to +n +wh，D+to+n+wh-inf，C+to+n+to-inf，C+n+inf]：～to sb that it is time to go to work 對某人做手勢示意該上班了;～to sb where to park his car 示意某人在哪兒停車;～to sb to stop/be quiet 做手勢示意某人停下來/安靜;～(for) sb to stop/enter 做手勢示意某人停下來/進來;

(2)簽字(名)(write one's name on，esp for official purposes)[I，T+n]：S～(your name)here，please. 請在此簽字?！玱ne's name on a cheque 在支票上簽上自己的名字;～a contract/document 在合同/文件上簽字;The treaty was～ed three days ago.條約是三天前簽署的。

(3)(簽定合同)雇(聘)用，受雇(聘)(engage or be engaged by signing a contract)[I，I+prep (for/with)，T+n](尤用于體育)：Jack has just～d for/with the local team. 杰克剛剛和地方球隊簽了約?！玹hree new players 簽約聘用三名新球員;

sign away (v adv)簽字放棄(vt)：If you～that paper you will be～ing away all your rights. 如果你簽署那份文件，你將失去你所有的權(quán)利。

sign for (v prep)簽收(vt)：Would you please～for this parcel? 請你簽收這個包裹好嗎?

sign in/out (v adv)簽到，登記進入/登記離開(vi & vt)：Every visitor must～in (out) when he enters (leaves) the factory. 每個來訪者在進入(離開)工廠時必須登記。Members must～in the guests that they bring to the club. 俱樂部成員必須為他們帶來的每一位客人登記。

sign off (v adv) 1)停止工作，解雇(vi)：After ten years，he at last decided to～off and go into business by himself. 10年后，他最終決定辭去工作，自己去經(jīng)商。 2)簽名結(jié)束一封信(vi)：I'd better～off now. Love，Mary. 我還是就此擱筆吧。愛你的瑪麗。3)結(jié)束廣播(vi)：It's time to～off for the day;listen again tomorrow. 今天的廣播到此結(jié)束，明天再會。

sign on/up (v adv)簽約雇用(受雇)(vi & vt)：If you join the army you have to～on for at least three years. 如果你參軍，你就得至少簽約三年。We have been lucky to～on so many experienced workers since we won the government contract. 自從爭得了政府的合同以來，我們幸運地和許多熟練工人簽了約。

sign on (v adv)登記為失業(yè)人員(BrE，infml)(vi)：Have you～ed on this week? 這周你進行失業(yè)登記了嗎?

sign over (v adv)簽字轉(zhuǎn)讓(vt)：The building will be～ed over to its new owners on Monday.周一簽字后這座大樓將轉(zhuǎn)讓給它的新主人。

sign up (for) (v adv)報名參加(vt)：Tom wants to～up for the contest. 湯姆要報名參加比賽。

→′signature n 簽字;署名;′signatory n 簽約人(國)