政府发动了一场防疫宣传活动。

zhèngfǔ fādòng le yī chǎng fángyì xuānchuán huódòng.

The government launched a campaign to promote epidemic prevention.

她成功地发动了一次慈善活动。

tā chénggōng de fādòng le yī cì císhàn huódòng.

She successfully organized a charity event.

这次运动会由学生会发动。

zhè cì yùndònghuì yóu xuéshēnghuì fādòng.

The student union initiated this sports event.