您要查找的是不是：
- Double bubble pumps 双提升管
- Double bubble gum bubbles double. 双重的泡泡糖能吹双重的泡泡。
- For several years China’s leaders have been trying gently to deflate a housing-market bubble pumped up by huge demand from a fast-growing middle class with few other investment opportunities. 快速增长中产阶级产生巨大需求，其他渠道投资机会少得可怜，这都催生了住房市场的泡沫，从数年前起，中国领导人们已经开始尝试对其进行柔和的挤压。
- He is working double tides to finish his essay. 他日夜苦干，赶写他的文章。
- I do not realize it is a double feature. 我原先不知道这是双片连映。
- Double agents live in a perpetual state of fear. 两面派永远过着提心吊胆的生活。
- I want a double room with a view. 我要一间能看到风景的双人房间。
- Experimental Investigation on Bubble Pump of Liquid-desiccant Air Conditioning System 除湿型空调中气泡泵的试验研究
- He was so fat that he had a double chin. 他胖得有双下巴了。
- The carpet is too thick to double up. 这地毯太厚没法折叠。
- Is the material single width or double width? 这幅料子是单幅的还是双幅的？
- Reserve double room June fourth to tenth inclusive. 预订双人房间，六月四日至十日，共六晚，望订妥复电。
- Inquiry of mathematical model for pressure characteristics of bubble pump for pump-free lithium bromide absorption refrigeration 无泵溴化锂吸收式制冷气泡泵压力特性数学模型的探讨
- In this case, I can double for penalty. 假如这样的话，我可以叫加倍了。
- Can you tell me the rate for a double room, please? 请告诉我一间双人房的费用可以吗？
- The soldiers came at the double. 士兵们是急行军来的。
- A couch performs a double service. 躺椅有双重的服务。
- Look, double yellow lines you mustn't park here. 喂，这是双黄线--不能在这儿停车。
- Please double up the chair and put it aside. 请把椅子折起来放在一边。
- For strong sewing use double, not single thread. 为了缝得牢，用双线，而不要用单线。
