They are made in 10 minutes, used in 20 minutes and normally remain on the earth for over 100 years since they are hard to be broken down.

它们在10分钟内制成，在20分钟内使用完毕，但由于很难被降解，它们通常会在地球上残留100年以上。

youdao

It could also be broken down into its component parts—oxygen and hydrogen.

它也可以按照组成部分被分解——氧和氢。

youdao

The shell somehow has to be broken down before this germination ability expires.

外壳必须在这种发芽能力失效之前被以某种方法破坏掉。

youdao

"When those products are at the end of their useful life, how are they going to be broken down?

VOA: special.2010.01.08

And the social emotions can be broken down into two categories.

社会情感可分为两类。

耶鲁公开课 - 心理学导论课程节选

Because I felt it had to be broken down. I felt it would be broken.

VOA: special.2010.04.24

More fundamentally, fun and games allow for the barriers between departments to be broken down.

FORBES: Fun, Fun, Fun - Millennials Want To Have Fun At Work

For a start, all business activities must be broken down into their discrete components.

ECONOMIST: Idea

Water from asteroids could be broken down in space to liquid oxygen and liquid hydrogen for rocket fuel.

BBC: Plans for asteroid mining emerge