| [/dʒæm; dʒæm/] n 用法:
1 [U] sweet substance made by boiling fruit with sugar until it is thick, usu preserved in jars, etc 果酱:
He spread some strawberry jam on his toast. 他把草莓酱涂在烤面包片上. 用法:
2 [C] type of this 果酱:
recipes for jams and preserves 果酱和蜜饯的制作方法. 用法:
3 (idm 习语) money for jam/old rope => money. jam 2
[/dʒæm; dʒæm/] v (-mm-) 用法:
1 [esp passive 尤用於被动语态:
Tn.pr, Tn.p] ~ sb/sth in, under, between, etc sth; ~ sb/sth in (a) squeeze sb/sth (into a space) so that he/it cannot move out 将某人[某物]塞（进某空间）不能出来:
sitting in a railway carriage, jammed between two fat men 坐在火车里夹在两个胖子中间出不来 *
The ship was jammed in the ice. 轮船卡在冰中间无法驶出. *
Don't park there you'll probably get jammed in. 别把汽车停在那里--有可能夹在里面开不出来.
(b) thrust sth forcibly or clumsily into a space 将某物硬塞入某处:
The newspapers were so tightly jammed in the letter-box he could hardly get them out. 报纸紧紧塞在信箱里, 他很难取出来. *
He jammed his key into the lock. 他把钥匙卡在锁里了. 用法:
2 [I, Tn, Tn.p] ~ sth (up) (cause sth to) become immovable or unworkable because sth has stuck （使某物）因被卡住而不能动弹或发生故障:
The key turned halfway and then jammed. 钥匙转了一半就卡住了. *
There's something jamming (up) the lock. 有什麽东西把锁卡住了. 用法:
3 [Tn, Tn.p] ~ sth (up) crowd (an area, etc) so as to block; obstruct 堵塞（某地方等）; 阻塞:
The holiday traffic is jamming the roads. 假日的车辆堵塞了道路. *
a river jammed up with logs 被圆木堵塞了的河流 *
a corridor jammed full of people and luggage 挤满了人和行李的走廊. 用法:
4 [Tn] (broadcasting 播) make (a message, programme, etc) difficult to understand by sending out a signal at the same time （发射无线电波）干扰（信息、 节目等）:
The government tried to jam the guerrillas' transmissions. 政府设法干扰游击队的无线电通讯. 用法:
5 (phr v) jam sth on apply (esp brakes) suddenly and forcibly 急拉, 猛踩（尤指制动器）:
As soon as she saw the child in the road, she jammed on her brakes. 她一见路上有个小孩, 便猛踩刹车. jam 3
n 用法:
1 crowding together of people, things, etc so that movement is difficult or impossible; congestion 拥挤; 拥塞:
a `traffic jam in a town 城里的交通堵塞 *
a `log-jam on a river 河面上的圆木堵塞. 用法:
2 failure or stoppage of a system, machine, etc caused by jamming （系统、 机器等卡住造成的）失灵或停顿:
a jam in the dispatch department 发送部门的文件积压. 用法:
3 (infml) difficult or embarrassing situation 困难的处境; 窘况:
How am I going to get out of this jam? 我怎样才能摆脱困境呢? *
be in/get into a jam 陷入困境. |