上周发布了一个新的和改进的软件版本。

A new and ___improved version of this software was released last week.

该产品提供了改进的安全功能以提供更好的保护。

The product offers ___improved safety features for better protection.

改善的经济状况为家庭增加了机会。

The ___improved economic situation has increased opportunities for families.