Why protect chlorophyll at a time when the tree is breaking it down to salvage as much of it as possible?

在树木将叶绿素分解，以尽可能多地将其回收的时候，为什么我们还要保护叶绿素呢？

youdao

If I am successful at breaking my time down that way, I usually discover that everything is fine for the moment.

所有我需要关心的是在我面前的危急事情，如果我能用这种方法把我的时间节省下来，那我就成功了。在这个时候我会发现所有的事情都很好的。

youdao

Without rest, exercise just keeps breaking down our muscles, and they don't have time to recover and grow.

如果没有足够的休息，锻炼只能损伤我们的肌肉，让它们没有时间恢复和生长。

youdao

Sir William - now ambassador to Saudi Arabia - acknowledged that international support for the sanctions policy in place against Iraq since 1991 - which underpinned the policy of containment - was steadily breaking down at the time.

BBC: Iraq inquiry told of 'clear' threat from Saddam Hussein