Meanwhile, health officials also encourage more people to get vaccinated against COVID-19 on a voluntary basis.

与此同时，卫生官员还鼓励更多的人自愿接种新冠肺炎疫苗。

The school uses teaching materials that can be found free and online, and its teachers work on a voluntary basis.

这所学校使用的教学材料可以在互联网上免费找到，网站的老师也是志愿服务的。

Of course, many people give their services on a voluntary basis and we now have volunteers working in observation, office work and other things.

当然了，很多人都是以志愿者的身份加入到我们组织的，我们目前的观察工作、办公室工作和其他工作都有志愿者负责。

That changed in early April when the Trump administration asked people who lived in Covid hot spots to wear cloth masks on a voluntary basis.

这种情况在4月初发生了变化，当时特朗普政府要求生活在年冠疫情热点地区的人自愿戴上布制口罩。

State-controlled companies bought foreign-owned banks (on a voluntary basis); the government is now targeting bank profits with a moratorium on loans.

国有控股公司收购外资银行（自愿）；政府现在通过暂停贷款来瞄准银行利润。

After hours of heated discussion, European leaders have agreed to take in tens of thousands migrants who've arrived in the EU, but only on a voluntary basis.

经过数小时的激烈争论，欧洲领导人们决议接纳已经抵达欧洲的成千上万移民，但依据自愿原则。