As many people hit middle age, they often start to notice that their memory and mental clarity are not what they used to be.
当许多人步入中年时，他们常常开始注意到自己的记忆力和思维清晰度不如从前了。
On the home front, however, people have no such clarity.
然而，在家庭内部，人们却没有这样的清晰度。
Rested in the Pacific Ocean, Mauna Kea's peak rises above the bulk of our planet's dense atmosphere, where conditions allow telescopes to obtain images of unsurpassed clarity.
毛纳基山位于太平洋之上，其山顶耸立在地球稠密大气层的大部分之上，这里的条件使望远镜能够获得无与伦比的清晰图像。
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。