未必的

The constitution of a primitive society is not necessarily simple.

原始社会的结构未简单。

All that glitters is not gold.

[谚]发光的东西未黄金。

The high tax policy is certainly unpopular, although it's unlikely to meet the soaring armament expenditures.

高赋税政策肯定不受欢迎的，但也未满足飞涨的军备开支。