If teens are spending so much time using electronic devices, does that mean they have to give up some other activities?

如果青少年花这么多时间使用电子设备，这是否意味着他们不得不放弃一些其他的活动？

youdao

I mean, just taking the space shuttle up and back one time is hugely expensive.

我的意思是，仅仅是发射航天飞机一次再飞回的成本就已经是天价了。

youdao

The wrong yes can mean pouring valuable time and money into a certain direction that ends up draining resources with little return.

一个错误的决定将意味着，把所有有价值的时间和金钱投入到一个特定的方向，但是结果却是颗粒无收。

youdao

Notice here, just to underline something which came up at the end last time, that doesn't just mean beliefs of the form, the goalie's going to dive left or the goalie's going to dive right.

我再提一下,上一讲最后的结论,大家需要引起重视,我并不是说信念是这种形式的,即门将会扑向左路或者门将会扑向右路

耶鲁公开课 - 博弈论课程节选

While changing the composition of our leaders in Washington would be a logical first step, I offer up some ideas in the mean time.

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Higher productivity does not have to mean fewer jobs, if demand is going up at the same time.

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The Obama administration in the mean time is taking great pride on having gotten oil production up.

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