Attempts were made to calculate Earth's age from the thickness of surviving sedimentary rock and from the current level of the oceans' salinity.

人们曾试图根据现存沉积岩的厚度和目前海洋的盐度水平来计算地球的年龄。

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Consequently, children of a particular age cannot be expected to master educational material without taking into account their current level of cognitive development.

因此，如果不考虑特定年龄段的孩子们目前的认知发展水平，就不能期待他们能够掌握教材。

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The factory cannot continue its current level of production.

这家工厂不能维持目前的生产水平。

《牛津词典》

The scientists say the current level of diversity within cattle breeds is at least as great as within humans.

VOA: special.2009.05.05

Mr.Stevens says a one hundred percent increase in fish farming over ten years is necessary to keep providing for people at the current level.

VOA: special.2011.02.08

The current level is already nearly double what the United States had in Afghanistan last year, and some officials, including Secretary Gates, have expressed reluctance to send more.

VOA: standard.2009.08.11

The survey showed that only 29% of the responders are satisfied with the current level of standards.

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Until that happens, it will be impossible for us to maintain our current level of activity.

UNESCO: EDUCATION

Spending at this current level would push debt to 90% of GDP by 2022.

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