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 拔出塞子让水流掉;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)电插头 (device with two or three pins on one side， used to make an electrical connection) [C]： a three-/two-pin～三相/两相插头;put the～in the socket 把插头插在插座里;change the～on the electric kettle/the hair drier 更换电热壶/电吹风上的插头; 2)(尤指室内)电源插座 (socket that is a source of electricity， usu in the wall of a room) [C] (infml)： electricity from a～in the bathroom 来自洗澡(手)间插座的电;

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

(4)(唱片或书等的)广告 (publicly stated favourable opinion for a commercial product， eg a record or a book) [C] (infml)： give sb's new show/film/book a～为某人的新节目/电影/书做广告;〖同〗promotion，advertisement;

(5)烟饼，板烟;口嚼烟(flat cake or stick of tobacco; piece of this cut off for chewing) [C];

→′plug-hole n (洗脸池，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 补牙/堵桶上的漏洞;～the hole with putty/the cracks with paper/one's ears with cotton wool 用腻子堵洞/纸堵裂缝/脱脂棉塞住耳朵;～up one's ears 堵上耳朵;The pipe seems to be～ged up and the water can't flow away. 这根管子好像堵上了，水流不掉。The coffee grains～ged the kitchen drain. 咖啡渣堵住了厨房的下水道。〖同〗cork，stuff;

(2)大肆宣传，为……做广告(advertise sth by repeatedly mentioning) [T+n](infml)：～a new car/a show/a brand of soap on the radio 在无线电广播里为新汽车/新节目/新牌子的肥皂做广告;The radio stations are～ging the book like mad. 广播电台在拼命为那本书做广告。

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

plug away (v adv) 埋头苦干(vi)：～away at learning English grammar/painting the room/one's studies 刻苦学习英语语法/卖力地油漆房间/埋头苦读;

plug in (v adv) 给……接通电源(vt)：～in the radio 把收音机的电源插头插上;No wonder the lamp didn't come on： it's not～ged in. 怪不得灯不亮呢，电源插头没插。