The identification of a yet unknown tubular structure, which interacts with ClpV, adds another level of complexity and challenges our vision of the T6SS working model.
Pregnancy, often unplanned, adds another level of complexity and treatment challenges.
"By balancing gameplay enjoyment with an appropriate level of challenge, games have the ability to keep players in their own unique optimally challenging and engaging zone for learning," wrote Jan Plass, an NYU Professor of digital media and learning sciences.
Nothing had prepared me for the level of challenge.
Now we raise aspiration by raising the level of challenge.
They know the kind of clubs I want, the level of challenge I want.
The NHS has not faced this level of challenge in its history.
For Mr. Coscia, this amounts to "a comfortable level of challenge," he said.
Teachers rewrite schemes to work to accommodate low levels of English, while keeping the content and level of challenge the same.
That she chose from the hit list of Byron and Emily Dickinson and not from, say, the oeuvre of James Merrill indicates precisely the level of challenge the clothes present.
