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The phrase "a challenging and complex" is correct and usable in written English.
It can be used to describe a situation, task, or subject that is both difficult and intricate.
Example: "The project we are undertaking is a challenging and complex endeavor that will require careful planning and execution."
Alternatives: "difficult and intricate" or "demanding and multifaceted".
Exact(18)
The panel, which also included Judges Pierre N. Leval and Barrington D. Parker Jr., praised Judge Kaplan for presiding over a "challenging and complex case with exemplary care and fairness".
And so I would expect some of these reservations to be absolutely normal, because when we get together and work on a particular project, a challenging and complex project, not everybody agrees on the same path to follow and not everybody agrees to the interpretation of certain data.
Decoding is a challenging and complex problem in a coded structured light system.
Obtaining such knowledge accurately is a challenging and complex task, which this present work does not address.
Finding someone with creativity and leadership to guide Zoox through its next stage, Levinson said, was a challenging and complex task.
The validation of an intrinsic vulnerability map is always a challenging and complex task that needs caution to avoid any erroneous interpretations and misleading results.
Similar(39)
In addition to providing a mechanism for acquiring broader consultation on a particularly challenging and complex case, the case conferences served as a quality assurance mechanism for the affiliated hospitals.
Chemoresistance is a very challenging and complex phenomenon involving a number of complex mechanisms.
But, he said, it faced a more challenging and complex situation in the Serbian-run areas of the country.
We should also praise the dedication of those people who helped Lisa Willis and her children escape to refuge – an extremely challenging and complex task.
This was a much more challenging and complex film to make than Pineapple Express and he presented it on set as an open book.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com