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n (1)塞子，栓 (piece of rubber， etc that fits tightly into a hole) [C]： a～in the barrel 木桶上的塞子;pull (out) the～and let the water drain away 拔出塞子讓水流掉;put a～in the hole to prevent the water from escaping; 在孔里塞上一只塞子防止水流出;stop up a leak with a～用塞子止漏;put～s in one's ears 在耳朵里塞上塞子;wear rubber～s in one's ears 在耳朵里塞上橡皮塞;〖同〗stopper，cork;

(2) 1)電插頭 (device with two or three pins on one side， used to make an electrical connection) [C]： a three-/two-pin～三相/兩相插頭;put the～in the socket 把插頭插在插座里;change the～on the electric kettle/the hair drier 更換電熱壺/電吹風(fēng)上的插頭; 2)(尤指室內(nèi))電源插座 (socket that is a source of electricity， usu in the wall of a room) [C] (infml)： electricity from a～in the bathroom 來(lái)自洗澡(手)間插座的電;

(3)火花塞 (part of a car engine that produces a spark to set on fire the explosive gases) (= sparking plug) [C];

(4)(唱片或書(shū)等的)廣告 (publicly stated favourable opinion for a commercial product， eg a record or a book) [C] (infml)： give sb's new show/film/book a～為某人的新節(jié)目/電影/書(shū)做廣告;〖同〗promotion，advertisement;

(5)煙餅，板煙;口嚼煙(flat cake or stick of tobacco; piece of this cut off for chewing) [C];

→′plug-hole n (洗臉池，下水道等的)塞孔;

vt (1)塞(堵)上(fill (a hole， gap， leak， etc) with or as if with a plug) [T+n， T+n+adv (up)]：～the hole in sb's tooth/a leak in the barrel 補(bǔ)牙/堵桶上的漏洞;～the hole with putty/the cracks with paper/one's ears with cotton wool 用膩?zhàn)佣露?紙堵裂縫/脫脂棉塞住耳朵;～up one's ears 堵上耳朵;The pipe seems to be～ged up and the water can't flow away. 這根管子好像堵上了，水流不掉。The coffee grains～ged the kitchen drain. 咖啡渣堵住了廚房的下水道?！纪絚ork，stuff;

(2)大肆宣傳，為……做廣告(advertise sth by repeatedly mentioning) [T+n](infml)：～a new car/a show/a brand of soap on the radio 在無(wú)線(xiàn)電廣播里為新汽車(chē)/新節(jié)目/新牌子的肥皂做廣告;The radio stations are～ging the book like mad. 廣播電臺(tái)在拼命為那本書(shū)做廣告。

(3)槍擊，打 (shoot with a gun or hit) [T+n] (infml) (AmE);

plug away (v adv) 埋頭苦干(vi)：～away at learning English grammar/painting the room/one's studies 刻苦學(xué)習(xí)英語(yǔ)語(yǔ)法/賣(mài)力地油漆房間/埋頭苦讀;

plug in (v adv) 給……接通電源(vt)：～in the radio 把收音機(jī)的電源插頭插上;No wonder the lamp didn't come on： it's not～ged in. 怪不得燈不亮呢，電源插頭沒(méi)插。