与美国小学生一起学英文第12册 第18期:圆柱体
时间：2019-02-11 作者：英语课 分类：与美国小学生一起学英文第12册
英语课
If you have two circles and one rectangle, what can you do with them? 如果你有两个圆和一个矩形，你能用它们做什么？
You can make a cylinder. 你可以做一个圆柱体。
A cylinder has two circular shapes on the bottom and top and long straight sides. 圆柱体在底部和顶部有两个圆形，还有一个长直边。
Many things around us are shaped like cylinders 2. 我们周围的许多东西都是圆柱形的。
A roll of toilet paper, a salt can and a water glass, usually have cylinder shapes. 一卷厕纸，一个盐罐和一个玻璃水杯，通常是圆柱形的。
To be a cylinder, the sizes of the circles on the bottom and the top should be exactly the same. 作为圆柱体，底部和顶部的圆应该大小完全一样。
Can you make a cylinder? 你能做一个圆柱体吗？
If you make a cylinder with thick paper, you can keep things in it. 如果你用厚纸做一个圆柱体，你可以把东西放里面。
n.圆筒，柱(面)，汽缸
- What's the volume of this cylinder?这个圆筒的体积有多少？
- The cylinder is getting too much gas and not enough air.汽缸里汽油太多而空气不足。
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小学英语