But, if the normal grown condition of tree is changed, the activity value of SOD, POD in leaves will be higher, especially SOD.

但是，一旦古树正常生长发生变化，其叶内的SOD、POD活性值会升高，SOD活性升高尤为明显。

youdao

In fact though, the children who you reward later on think that this activity has less value and they are less likely to do it when there's no reward present.

但事实上，拿到奖励的孩子会想,这个活动的价值变低了，如果没有奖励,他们就不太可能会再做。

耶鲁公开课 - 心理学导论课程节选

And so, rewarding children has a danger, which is if you give them too much reward and too much a value for what they're doing they will denigrate the activity.

所以奖励孩子是有隐患的，如果你给他们太多奖励,赋予他们的活动太多价值,他们就会贬低这个活动。

耶鲁公开课 - 心理学导论课程节选

If they then start to actually use that investment in some productive way that pays wages and earns a profit, then they start to generate additional value-added from that activity, and that value-added continues to be created as long as they keep doing that productivev activity.

FORBES: Investment and Technological Progress

But still, most firms found it hard to spot a value activity when it hit their factory floor.

ECONOMIST: Idea

Most of the brainy or so-called added-value activity still takes place at Longbridge.

BBC: Chinese Premier backing the euro and the UK