The researchers looked at time spent in a number of activities that could plausibly be driving the wellbeing decline.

研究人员观察了一些可能导致幸福感下降的活动所花费的时间。

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The researchers looked at time spent in a number of activities that could plausibly be driving the well-being decline.

研究人员观察了人们在一些活动上花费的时间，这些活动似乎是导致幸福感下降的原因。

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In this there is also a CCTV reported in a number of activities.

这个在央视里面也是有报道过的一些活动。

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The United States,however, became involved unofficially in a number of league activities.

VOA: special.2011.02.03

Children are the primary beneficiaries of the festivities and take part in a number of activities, such as decorating hard-boiled eggs.

UNESCO: Culture

As the Center for Security Policy has observed in a number of recent papers, the Russian military services are engaged in a number of activities highly inimical to Western security interests.

CENTERFORSECURITYPOLICY: Center For Security Policy

"These riders, and the accompanying report language in several bills, deliberately seek to prevent the administration from engaging in a number of voluntary activities to protect Americans from the impacts of climate change, " states the letter.

CNN: Climate change funding curb fought