VOA慢速英语:Scientists Plan to Make 3-D Map of the Milky Way

短语讲解：

1. We tell about an American decision to extend the life of the International Space Station.

tell about 谈及; 讲述
例句：I like those stories you tell about the countryside.
我很喜欢你说的那些乡村故事。

2. In addition, its temperature must not change very much.

in addition 另外; 除此之外
例句：In addition individuals are not static creatures.
另外，个体不是一个一成不变的东西。

3. We can run it forwards, into the future, how the Milky Way will develop by looking at all the stars and how they move.

look at 看; 评判
例句：Look at our verse today.
看我们今天的章节。

4. The mission is expected to cost about $1.3 billion.

be expected to 被期待做某事; 有望做某事; 期许
例句：That could hardly be expected to last.
这很难预计将持续多久。

5. The US space agency says its Mars rover vehicle “Opportunity” is still working more than 10 years after arriving on the red planet.

more than 不只是; 很; 超过; 在…次以上
例句：More than 1000 turned up.
最后共有1000多人出席。

6. But those are minor problems when you think about how long the project was supposed to last: just three months.

think about 考虑…; 捉摸
例句：I don't think about it much.
我不想过多地考虑这些。

7. Professor McSween was not involved in the recent study.

involve in 使参与[陷入，牵扯到]
例句：Do you involve in the copyright affair?
你参与著作权的事务了吗？

8. Billions of them pass through us every second.

pass through 经过;  通过
例句：Attendees must pass through airport-like security.
参加者必须通过机场式的安检。

9. When the neutrinos mix with atoms inside the deep ice instrumentss, they sometimes give off small amounts of light.

give off 发出;  放出;  散发出
例句：When bacteria stagnate, they multiply and give off toxins and stinky odors.
当细菌停滞时，它们会繁殖并释放毒素和臭气。

10. “It was almost impossible, without more data and data at lower energies, to be sure that these two neutrinos that we found were part of a larger pattern indicating an extraterrestrial population, instead of some statistical fluke.”

be sure [法]确信; 诚然; 有谱儿
例句：We cannot be sure who is right.
我们不能确定谁对谁错。