[問題]PP test1 Listening Q135-138

[molecular]

135-138 Space science class
One of the main causes of the environment pollution is the crisis of the commons. The crisis of the commons is the problem results when the part of environment is not own by anyone. Take a park, one reason that the park grounds are frequently more litter than people’s backyards is no one owns them. People, who throw the paper trash away in the park, can walk away as nothing happened because the park is not theirs. A new extremely large crisis of commons that the astronomers are becoming increasingly aware of is the pollution in outer space. Since nobody owns space, nobody has truly personal interesting to clean it up. The problem of space pollution is more acute than that in the park too, because of the inability of space to clean itself up. The paper bag in the park will eventually disintegrate into its basic elements, but junk in space is unable to be broken down naturally by water and oxygen and so it stays there. Old satellites orbiting the earth out of control of space agency who launch them are the main sources of pollution in space. Collisions among the old satellites result them breaking up into smaller pieces. And this multiplies the amount of freely floating litter. A piece of matter only decides a mobile impact against the large space satellite has the same force as the safe dropped off the roof of the skyscraper. One astronomer estimates that large space satellite orbiting the earth now stands a ten percent chance being hit by discard in space degree.

請問紅色那句話是什麼意思呢?
還想請問degree在這個地方是什麼意思?
Thanks

[LaValse]

我也覺得紅色那句話怪怪的

至於最後的degree我聽覺得應該是debris ,
整句應該是hit by discarded space debris

不知道對不對~

[aaronmin]

A piece of metal only decides if a marble impacting against the large space satellite has the same force as a safe dropped off the roof of a skyscraper. One astronomer estimates that the large space satellite orbiting the earth now stands a ten percent chance of being hit by discarded space debris.

綠色的地方我也不是很確定

[molecular]

謝謝你!! listening的部分, 我實在不太有能夠更正pp script的能力和自信
不靠人幫忙實在不行, 真的多謝!!

[ownways]

A piece of metal only decides if a marble impacting against the large space satellite has the same force as a safe dropped off the roof of a skyscraper.

請問這句話的意思是怎麼翻譯呢??
marble impacting 是指彈珠撞擊??

比較法那麼實在看不懂....
什麼叫跟降落在高樓大廈的屋頂一樣安全?
是指撞到的話就跟要降落在屋頂一樣不安全??

[jessyni]

A piece of metal only decides if a marble impacting against the large space satellite has the same force as a safe dropped off the roof of a skyscraper. One astronomer estimates that the large space satellite orbiting the earth now stands a ten percent chance of being hit by discarded space debris.

這句話我也不太了解耶！可以請大大們解釋一下嗎？謝謝...