词典释义：
a piece of solid material fitting tightly into a hole and blocking it up
堵塞物
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somewhere in the pipes there is a plug of ice blocking the flow .管子里某个位置有冰块堵住了水流。
a circular piece of metal, rubber, or plastic used to stop the plughole of a bath or basin and keep the water in it
塞子，栓。
〈北 美，非正式〉 （婴儿的）橡皮奶头。
a mass of solidified lava filling the neck of a volcano
岩颈。
(in gardening)a young plant or clump of grass with a small mass of soil protecting its roots, for planting out
（园艺用语）（供移植的）幼苗，草皮。
a device for making an electrical connection, especially between an appliance and the mains, consisting of an insulated casing with metal pins that fit into holes in a socket
插头。
a socket into which such a device can be fitted
插座。
short for
<Bold>SPARK PLUG</Bold>的简称。
〈非正式〉 （产品、活动或机构的）宣传，广告
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he threw in a plug, boasting that the restaurant offered many entrées for under $5. 他插入了一个广告，吹嘘该饭店提供许多种价格在五美元以下的主菜肴。
a piece of tobacco cut from a larger cake for chewing
口嚼烟草块（条）。
[mass noun](亦作
口嚼烟草饼。
【渔】 鱼饵。
short for
<Bold>FIREPLUG</Bold>的简称。
〈北美，非正式〉 疲惫的马；老马。
block or fill in (a hole or cavity)
堵，填（洞，穴）
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trucks arrived loaded with gravel to plug the hole and clear the road 满载碎石的卡车到了，这些碎石是用来填坑平路的
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figurative 〈喻〉the new sanctions are meant to plug the gaps in the trade embargo .这些新制裁旨在堵住贸易禁运中的漏洞。
insert (something) into an opening so as to fill it
插入，塞入
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the baby plugged his thumb into his mouth .这个婴儿把大拇指塞进了嘴里。
〈非正式〉 推广，宣传（产品，活动，机构）
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during the show he plugged his new record .在演出中间，他宣传了他的新唱片。
〈非正式〉 射击，击打。
[no obj., with adverbial]
〈非正式〉 艰难地走；埋头于
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during the years of poverty, he plugged away at his writing .在贫困的岁月里，他埋头于写作。
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plug something in connect an electrical appliance to the mains by inserting a plug in a socket （将插头插入插座以）给… 接通电源；接通电源 -
plug into （of an electrical appliance） be connected to another appliance by a lead inserted in a socket（电器）连接 -
gain or have access to a system of computerized information 接入（电脑信息系统）
we plug into the research facilities available at the institute ． 我们接入了学院的研究设施 -
figurative become knowledgeable about and involved with〈喻〉 熟悉，非常了解the good thing about this job is that I'm plugged into what's going on ． 这个工作的好处是我能了解正在发生些什么
"early 17th cent.: from Middle Dutch and Middle Low German
