| 单词 | jam |
| 释义 | nounverb🔑 jamBrE /dʒæm/ NAmE /dʒæm/ noun ➤ sweet food 甜食🔑 [U , C ]a thick sweet substance made by boiling fruit with sugar , often sold in jars and spread on bread 果酱◆ strawberry jam 草莓酱◆ recipes for jams and preserves 果酱和蜜饯的制作方法◆ (BrE ) a jam doughnut 果酱炸面圈 ➡ compare jelly (3 ) , marmalade➤ many people /vehicles 人多；车多[C ]a situation in which it is difficult or impossible to move because there are so many people or vehicles in one particular place 拥挤；堵塞◆ The bus was delayed in a five -mile jam . 公共汽车因长达五英里的交通堵塞而延误。◆ As fans rushed to leave , jams formed at all the exits . 因球迷都急于离开，所有出口都给阻塞了。 ➡ see also traffic jam➤ machine 机器[C ]a situation in which a machine does not work because sth is stuck in one position 卡住（因而发生故障）◆ There's a paper jam in the photocopier . 复印机卡纸了。 ● be in a ˈjam (informal ) to be in a difficult situation 陷入困境● jam toˈmorrow (BrE , informal ) good things that are promised for the future but never happen 可望而不可即的美好未来；许而不予的好东西◆ They refused to settle for a promise of jam tomorrow . 他们并不满足于那些美好未来的空话。● money for ˈjam /old ˈrope (BrE , informal ) money that is earned very easily , for sth that needs little effort 容易赚的钱财🔑 jamBrE /dʒæm/ NAmE /dʒæm/ verb present simple - I / you / we / they jam BrE /dʒæm/ NAmE /dʒæm/ present simple - he / she / it jams BrE /dʒæmz/ NAmE /dʒæmz/ past simple jammed BrE /dʒæmd/ NAmE /dʒæmd/ past participle jammed BrE /dʒæmd/ NAmE /dʒæmd/ -ing form jamming BrE /ˈdʒæmɪŋ/ NAmE /ˈdʒæmɪŋ/ ➤ push with force 用力推[T ]~sth + adv ./prep .to push sth somewhere with a lot of force 使劲（往某处）挤（或压、塞）◆ He jammed his fingers in his ears . 他用手指使劲堵住耳朵。◆ A stool had been jammed against the door . 门被一把凳子顶住了。➤ stop moving /working 停止移动/运转[I , T ]to become unable to move or work ; to make sth do this （使）卡住，不能动弹，不能运转◆ ~ (up )The photocopier keeps jamming up . 这台复印机总是卡纸。◆ ~sth (up )There's a loose part that keeps jamming the mechanism . 有个零件松了经常卡住机器。◆ + adj .The valve has jammed shut . 阀门给卡住了打不开。◆ ~sth + adj .He jammed the door open with a piece of wood . 他用一块木头卡住门让它开着。➤ put into small space 塞进[T , I ]to put sb /sth into a small space where there is very little room to move 塞入；塞进；挤进SYN squash, squeeze◆ ~sb /sth + adv ./prep .Six of us were jammed into one small car . 我们六个人被塞进一辆小汽车里。◆ We were jammed together like sardines in a can . 我们像罐头里的沙丁鱼一般紧紧挤在一起。◆ The cupboards were jammed full of old newspapers . 橱柜里塞满了旧报纸。◆ + adv ./prep .Nearly 1 000 students jammed into the hall . 近 1 000 名学生挤到礼堂里。 ➡ see also jam-packed➤ fill with people /things 挤满人/物[T ]~sth (up ) (with sb /sth )to fill sth with a large number of people or things so that it is unable to function as it should 挤满；塞紧SYN block◆ Viewers jammed the switchboard with complaints . 打电话投诉的观众使总机应接不暇。➤ radio broadcast 无线电广播[T ]~sth (specialist ) to send out radio signals to prevent another radio broadcast from being heard （发射无线电波）干扰➤ play music 演奏音乐[I , T ]~ (sth )to play music with other musicians in an informal way without preparing or practising first 即兴演奏 ● jam on the brake (s )● jam the brake (s ) on to operate the brakes on a vehicle suddenly and with force 猛踩刹车◆ The car skidded as he jammed on the brakes . 他紧急刹车时汽车向前滑了一段路。 |
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