信函作者没有提供将此两项研究进行比较的基础，从而使两项研究在其广度、范围以及专业水准方面的可比性不得而知。

The writer offers no basis on which to compare the two studies, leaving it open as to whether the two are truly comparable in their breadth, scope and expertise.

youdao

信函作者没有提供将此两项研究进行比较的基础，从而使两项研究在其广度、范围以及专业水准方面的可比性不得而知。

The writer offers no basis on which to compare the two studies, leaving it open as to whether the two are truly comparable in their breadth, scope and expertise.

youdao