Conduct interviews, become a participant, if only for a day.

进行采访，成为其中的参与者，哪怕只有一天。

youdao

How not, the same research reveal the average time each person spends on his cell phone for two hours a day. 19 percent even claim could not live without a cell phone even if only for a day.

怎么不会呢，这项调查还显示，每个人每天平均花在手机上的时间是两个小时。19%的手机用户甚至称他们没有手机的话一天也过不下去。

youdao

If every distraction took only 1 minute, that would account for 2.5 hours a day.

如果每次分心耗时1分钟，那每天的分心时长就会长达2.5小时。

youdao

Once, indeed, it carried out that threat, if only for a day.

ECONOMIST: The Fund's golden Rato

In the same way, an unplugged Sunday is a better idea than turning off the Internet completely, since it demonstrates that we can get along just fine without the screens, if only for a day.

NEWYORKER: The Information

If they only work for a day then you are going to be getting through tons and tons of biocatalyst for each ton of CO2.

CNN: Turning carbon dioxide into fuel