正文

VOA慢速英语:Bright Idea: Light Bulbs From Plastic Bottles, Water and Bleach

2012-01-09来源:VOA

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词汇讲解：

1. count n. 计数, 总数
例句：By my count that's five cakes you've had already.
我数着你已经吃了五块蛋糕。

2. improvement n. 增加或修改；改进, 改善, 改良
例句：Your work shows considerable improvement.
你的工作显示出相当大的改进。

3. brighten vt. (使)发亮,(使)发光
例句：White paint will brighten the room.
白漆将会使房子更明亮。

4. install vt.安装；安顿, 安置
例句：He's going to install an air-conditioner in the house.
他要在这屋子里装空调机。

5. seal vt.盖章于；密封；决定
例句：She sealed the letter.
她把信封上了。

6. refract v. (使)折射
例句：Light is refracted when it is passed through a prism.
光线通过棱镜时产生折射现象。

7. repeat vt. 重说, 重做，重写
例句：The boy repeated his question.
那孩子又问了一遍他的问题。

8. similar adj. 类似的; 同类的; 相似的; 同样的
例句：My problems are very similar to yours.
我的问题和你的差不多。

9. solution n. 解决, 解答, 解决办法
例句：The solution to the problem required many hours.
解决这个问题需要好几个小时。

10. expect vt. 预料; 预期
例句：She expects to fail the exam.
她预料无法通过考试。