double

复数：doubles过去式：doubled过去分词：doubled现在分词：doubling第三人称单数：doubles

1. 双的,双重的 consisting of two similar or combined parts
2. 供两人用的,双人的 made for two people
3. 两面派的,虚伪的 deceiving; seeming to be one thing while actually being another

1. [U]两倍,双份 sth that is twice the size, quantity value, or strength of sth else

1. vt. & vi. 把…对折,折叠 fold in half
2. vt. & vi. 是…的两倍,(使)加倍 make or become twice as great or as many
3. vt. & vi. 兼任,兼作 have a second use, job or purpose
4. vi. 折回,掉头 turn back

• double the amount使数额加一倍
• double a slice of bread把一片面包对折

• double along弯得低低的,全副武装
• double back把…对折,循原路折回
• double the map back将地图对折
• double in向内折叠
• double over折起,(使)弯下身子
• double sb over(使)某人弯下身
• double over the edge把边折起来
• double up折起,弯〔曲〕,与别人同住一室

• double as兼作,兼演
• double as an auditorium兼作礼堂
• double as secretary and receptionist兼作秘书和招待员
• double for代替(某人)
• double in brass同时做两份工作
• double in number在数量上翻一番
• double in value在价值上翻一番
• double on〔upon〕迂回,突然袭击
• double on one's steps走回头路
• double upon the enemy突然袭击敌人

double layer双层

double room双人房

double deck n. 楼中楼；双层甲板

double star双星（紧密相连的二颗星，借望远镜始可分辨者）

double bed双人床

on the double快速地

double effect双效；双重效果；双重影响

double side双边的；双面板；双面材质

double bond双键

double taxation[经]双重征税；[经]重复课税

double click双击；双击鼠标

double helix[生化]双螺旋

double track双声道，双声轨（录音磁带）

double line双线（线路）；二重线；隔行

double wall双重壁；双层墙

double loop双箕；双环路

double decomposition复分解

see double看成重影

double frequency倍频，双频；双频率的

double ninth festival重阳节

1. The date had a double significance.
   那个日子有双重意义。
2. This machine serves a double purpose.
   这部机器有双重用途。
3. The egg has a double yolk.
   这只蛋双黄。
4. He was so fat that he had a double chin.
   他胖得有双下巴了。
5. You can't park on a double yellow line.
   有双黄线处不准停车。
6. I'll give you double pay for working overtime.
   你加班我付你双倍工钱。
7. The output is double that of last year.
   产量比去年增加一倍。
8. Shard joy is a double joy and shard sorrow is half a sorrow.
   分享快乐会变成双倍的快乐,分享悲伤会减半。

1. I think we can double our profits in one month.
   我认为我们可以在一个月内把利润翻一番。
2. The modern equipment enables them to double their production.
   现代化的设备使他们能把产量翻倍。
3. If you should be off guard,you would double the loss.
   如果你粗心大意，你一定会加倍损失。
4. If you double five， you make ten.
   五加倍就是十。
5. The measures will enable us to double our output of bicycles.
   这些措施能使我们的自行车产量加倍。

1. If you buy a new bicycle, it will cost more than double.
   如果你买新的自行车，价格要贵一倍多。
2. I ordered the coffee in double before you come.
   你来之前我点了双份咖啡。