I heard that a mass campaign encouraging show love to the victims of earthquake-stricken area is now widespread.

我听说为地震灾区的灾民献爱心的活动在广泛开展。

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Scientists have tried many ways to solve this problem and in China, a mass campaign has been started to help solve it.

科学家们已经采用许多方法来解决沙尘暴的问题，在中国，一场大规模的整治沙尘暴战役已经开始了。

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The protest campaign has used mass strikes and demonstrations to press its demands.

抗议活动采用了大规模罢工和示威游行来有力地表明其要求。

《柯林斯英汉双解大词典》

"You can't solve an environmental problem through a temporary mass campaign, " he said, adding that environmentalists need to address people's attitude first and foremost.

CNN: Fighting the desert one tree at a time

Under the reign of such rulers, there was a mass campaign of victimization, torture, and marginalization against liberals and Islamists alike who posed a threat.

CNN: STORY HIGHLIGHTS

Tory MP Mark Field told the Mail on Sunday that he had "a handful of conversations with people" but that there was "no mass campaign" in support of Mr Afriyie.

BBC: Adam Afriyie denies plot to oust David Cameron