While almost all the countries which carry out the housing quality insurance successfully adopt the mandatory insurance by enacting new laws, China still adopt the mode of voluntaryinsurance.
成功开展住宅质量保险的国家大都通过立法推行强制保险，而我国仍然采用自愿保险。
2
The issue of voluntary part-time relates to Obamacare because one of the main purposes was to allow people to get insurance outside of employment.
自愿兼职的问题与奥巴马医改计划有关，因为该计划主要目的之一就是让人们在就业之外得到保险。
3
So while the EFSF scheme is designed to offer insurance to bondholders, the European leaders' insistence that the Greek writedown be voluntary will make euro-zone debt harder to insure.