VOA慢速英语:The Grand Canyon: Beyond Words

短语讲解：

1. Parts of the canyon are more than 30 kilometers wide and one kilometer deep.

more than 超过; 不只是; 很; 在…次以上
例句：Margaret needed support more than ever.
玛格丽特比以往更需要关心。

2. Forty million years ago, the Colorado River began cutting through the area around the present-day Grand Canyon. 
 
cut through 穿过，挤进
例句：He cut through a forest to get home.
他穿过一片森林才到家。

3. At the same time, forces deep within the Earth pushed up the surrounding land.

at the same time 同时; 一起; 但是; 然而
例句：At the same time he still believed himself financially honest.
同时，他还认为自己在经济上是正直无欺的。

4. The Grand Canyon was named a Globally Important Bird Area in 2014 because of the role it plays in protecting many species of birds.

because of 因为
例句：He is feeling wretched today because of the rain.
因为下雨，他今天情绪很不好。

5. The Hopi, the Paiute, the Navajo and other Native American tribes have all been in the area for at least 700 years.

at least 至少
例句：In fact it requires at least n generators.
事实上，它至少要有n个元素。

6. In many places, boast could be turned over by giant waves.

turn over 移交; （使） 翻转; 变换
例句：He was determined to mend his ways and turn over new leaf.
他决心改过自新,重新做人。

7. Depending on the time of day, the sun lights up the rock walls in red, orange, and golden colors.

light up 照亮; 点烟; 开街灯或车灯
例句：It' s time to light up.
该点灯了。

8. Hundreds of thousands of people see the canyon by air each year.

hundreds of thousands of 几十万，无数
例句：This reform is a difficult task because it affects hundreds of thousands of households.
这项改革涉及千家万户，难度很大。