The environment will need to be monitored and maintained over time.

环境将需要一段时间监测和维护。

youdao

The accuracy of a knowledge base can be maintained and improved over time by providing it with feedback -- confirmation or correction of the current categorization.

通过向知识库提供反馈（对当前的分类进行确认或纠正），知识库的精确性可以随着时间的推移得以维持和提高。

youdao

Most nightmare patients treated with imagery rehearsal therapy report improvements in sleep quality and significant reductions in nightmare frequency; these gains are maintained over time.

大部分的接受图像预演疗法的患者都报告有睡眠质量的提高和噩梦出现频率的显著减少；这些改善随着时间的推移依然能够保持。

youdao

The precise ethnic groupings which exist in a State, the significance of ethnicity for social participation in societal institutions and the processes through which ethnic differentiation is constructed and maintained may vary considerably between individual States, and over time.

UNESCO: Social and Human Sciences

Spending rising at the rate of population growth and inflation means the same amount of spending can be maintained per person in real terms over time.

FORBES: The Anachronism Of State Income Taxes