Kempen gotong-royong 的英文是 gotong-royong campaign.
可以参考一下链接:
https://rojakdaily.com/news/article/6430/health-ministry-says-malaysians-are-contracting-a-riskier-form-of-dengue-this-year
里面说道: Residents communities and organisations 。。。mass 'Gotong-Royong' campaigns.
https://www.thestar.com.my/news/nation/2019/10/08/massive-gotong-royong-campaign-in-miri-after-first-dengue-death
里面说道: Massive gotong-royong campaign in Miri。。。
希望能够帮到你! Hope you have a nice day!
如果是英文的话,正确的应该是campaign gotong-royong.如果是马来文的话,正确的是kempen gotong-royong