Over a decade or so, American teens' social media use shifted from an occasional activity to a routine one.
在过去十年左右的时间里,美国青少年对社交媒体的使用从偶尔的活动变成了日常活动。
2
But even here, the ease of production is rapidly improving, and younger people who have grownup with video as part of their routinemedia toolkits are showing older folks (like me) new tricks.