jam的復數(shù)形式是直接加s，即jams。jam可作名詞和動詞兩種詞性，基本含義為“果醬”、“堵塞”、“卡住”、“不能動彈”、“塞進”、“干擾”、“即興演奏”、“使勁往某處擠”。
jam的中文意思及用法介紹
jam可作名詞和動詞，意為果醬;擁擠;堵塞;卡住(因而發(fā)生故障)；使勁(往某處)擠(或壓、塞);(使)卡住，不能動彈，不能運轉(zhuǎn);塞入;塞進;擠進;擠滿;（發(fā)射無線電波）干擾;即興演奏。例句有：
1、The bus was delayed in a five-mile jam.
公共汽車因長達五英里的交通堵塞而延誤。
2、Cut the cake in half horizontally and spread jam on one half.
把蛋糕橫切成兩半，把果醬涂在半面上。
3、There's a loose part that keeps jamming the mechanism.
有個零件松了經(jīng)?？ㄗC器。
4、The company's lines have been jammed all day with people making complaints.
公司的電話整天都因人們打投訴電話而占線。
5、I can't get the door open ─ it's completely jammed.
我打不開門——卡死了。
6、Hundreds more people were waiting outside the jammed stadium.
還有數(shù)百人在擁擠不堪的體育場外等候。
7、There is a new device for cars that warns drivers of traffic jams ahead.
有一種新的汽車裝置可提醒司機前面有交通堵塞。
8、She sat in the car, silently fuming at the traffic jam.
她坐在汽車里，心中對交通堵塞感到十分惱火。
9、Hundreds of fans jammed the switchboard for over an hour.
在一個多小時里，好幾百個崇拜者打去電話，交換臺應接不暇。
10、Have some of my plum jam ─ but mind out for the stones.
嘗嘗我的李子醬——但得當心有核兒。
