You'll have to make social media an occasional activity rather than a daily, time-consuming habit.

你将不得不让使用社交媒体成为一项偶尔为之的活动，而不是每天都要做的、耗费时间的习惯。

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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。

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You could see the occasional solitary figure making a study of wildflowers or grasses.

你偶尔可以看见那个研究野生花草的孤独身影。

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U.S.officials, including the number-two American commander here, Army Lieutenant General Charles Jacoby, say such occasional spectacular attacks are,in a way, evidence of the decline of al-Qaida in Iraq, which once staged dozens of attacks every day.

VOA: standard.2009.12.11

In the first place, a mask is nearly always occasional.

首先，这个节目几乎是偶然的。

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Like his medium, his method combines the old and the new: he draws with a traditional Japanese brush dipped in ink, but adds occasional colour on a Mac.

ECONOMIST: Japanese cartoons

They also showed, as in any popular symphony concert, that they could play with equal finesse a program dominated by good if unchallenging late-19th-century romanticism, along with a substantial piece of varying, onflowing modernism, and occasional jolts of a new kind of music.

WSJ: "Peer" Pressure | Peer Gynt | San Francisco Symphony Orchestra | By David Littlejohn

If you want to succeed in international investing you can't just buy a couple foreign stocks every now and then or make an occasional bet on a hot country fund or ETF.

FORBES: Creating A Borderless Portfolio