水泵

feed-water pump的用法和样例：

例句

Prime the bump with some water to get it stared.给水泵加点水使之启动。

剑桥雅思报考指南第17期:OG04 Recording 19

听力文本 Recording 19 录音19 A. At the bottom of the system, there is a storage tank, which can hold up to 500 litres of rainwater. The water stored in the tank can be used for general gardening and cleaning. A、在该系统底部有个贮存水

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走进剑桥大学

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Rainforests exist because it rains a lot and that makes the forests grow, right? Well, not so fast. What if its not the rain that makes the forestswhat if its the forests that actually generate the rain? Thats the contention of a paper in BioScience

发表于:2019-01-02 / 阅读(102) / 评论(0)

60秒科学

SSS 2009-05-07

Rainforests exist because it rains a lot and that makes forests grow, right? Well, not so fast. What if its not the rain that makes the forests? What if its the forests that actually generate the rain? That is the contention of a paper in BioScience

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Todd: So Carla, you lived in Africa. Carla: We got married in Africa. Todd: Wow. Carla: And we moved to Nigeria. As I told you before, we got married in Ghana, and we moved to Nigeria. And our kids were born in Nigeria. But I wanna tell you a little

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英语访谈对话

原版英语对话1000个:516 Life in Africa

发表于:2019-02-18 / 阅读(42) / 评论(0)

原版英语对话1000个

听播客学英语 107 如何保持温暖

If you visit upland areas of Britain places like the mountains of Scotland, or Wales, or the Pennine Hills in northern England you will see a lot of sheep. Many of the sheep are in places where there are no walls or hedges to keep them in their field

发表于:2019-02-19 / 阅读(69) / 评论(0)

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