Limit all screen media time to a maximum of two hours a day.
每天使用电脑或电视的时间限制在两小时之内。
I'm spending most of my social media time on Twitter and I won't build a new power profile from zero.
我经营社交媒体的大部分时间都花在twitter上,我不会又从零开始去建立一个新的有影响力的身份。
The media and political observers have spent a lot of time examining Mister Obama's first one hundred days in office.
VOA: special.2009.05.02
Researcher Laura Nauman noted that we live in a time of social media, and personal photographs are everywhere.
VOA: special.2009.11.24
Media Relations Director Jeffrey Hiday says the term "think tank" dates back to that time.
VOA: special.2010.09.27
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