betterment

they believed that what they were doing was vital for the betterment of society.

他们相信他们正在的事情对会改良至关重要。

The costs of additions and betterments are capitalized and expenditures for repairs and maintenance are expensed in the period incurred.

附加和修缮资化，并且发生了修理和维护费用。

Compared to the traditional technique of agent program's planting and activation, it has betterments in realism and privacy.It also has some innovation in the ways and means.

相对于传统的代理软件的种植和激活技术,在现实性和隐蔽性方面有所改进,在思路和方法上亦有较大创新。