VOA慢速英语:Lots of Snow Covers Much of the United States This Winter

短语讲解：

1. Today, we will tell you about snow.

tell about 谈及; 讲述
例句：A legendary story tell about climbing.
一个关于攀登的传奇故事。

2. Millions of Americans live in, or travel through, these states.

live in 住在（某地）; 存在于…; 为…而生存
例句：I live in the south carolina.
我住在卡罗来纳州南部。

3. The shape depends mainly on the temperature and water levels in the air.

depend on 依赖; 相信
例句：Your dreams depend on it.
你的成败取决于此。

4. As many as 100 crystals may join to form a snowflake larger than two and one-half centimeters.

as many as 和…一样多; 不下于
例句：My books are twice as many as yours.
我的书是你的两倍多.

5. Snowfall helps to protect plants and some wild animals from winter weather.

protect from 保护， 保卫
例句：Happily, there’s more than one way to protect software from bad data. 
令人高兴的是，有很多方法可以保护软件免受坏数据的侵害。 

6. So scientists have come up with a solution.

come up with 追赶上; 比得上
例句：Slow down a bit and let me come up with you. 
跑慢一点让我赶上吧。 

7.  Clouds with extremely cool water are mixed with man-made ice crystals, such as silver iodide and metaldehyde crystals. 

mix with （使）与…混[结]合
例句：Never mix up these two words. 
千万别把这两个词相混淆。 

8. It is responsible for the deaths of hundreds of people in the United States every year.

be responsible for 为…负责，形成…的原因; 主管
例句：One person should be responsible for new employee orientation.
应当有一个人负责新员工的培训。