The phrase "constitute obstacle" is correct and can be used in written English.
You can use this phrase when describing something that challenges or hinders a process or progress. For example, "The severe weather conditions constituted an obstacle for the mountain-climbing expedition."
"Any measures by any foreign countries should be conducive to safeguarding the interests of consumers," Mr. Wang said, adding that those measures should not "constitute obstacles or be used as protectionist excuses to impede the normal conduct of trade relations".
It is also true that the rigorous argumentation, analysis of language, and use of symbolic logic often constitute obstacles for outsiders to this methodology.
Once people have fallen, they constitute obstacles to others and are endangered by others falling on top of them, since these can also not control their steps anymore as they wish.
In short, then, the things Nietzsche identifies as "valuable" for life are those he takes to be necessary for the flourishing of the highest types of life (or human excellence), while those that he identifies as harmful to it are those that he takes to be things that constitute obstacles to such flourishing.
Both the domain-specific language and visualizations, aimed to facilitate communication, can constitute obstacles or introduce misinterpretations.
Cytosine arabinoside-based chemotherapy coupled with anthracycline is currently the first-line treatment for acute myeloid leukaemia (AML), but diverse responses to the regimen constitute obstacles to successful treatment.
They also committed to "addressing the current economic and employment crisis, the underlying corruption in many of our countries as well as gender inequalities, which all constitute obstacles to the achievement of child rights".
In the outcome document, they committed to developing a holistic approach to social protection and to acknowledging the need to coordinate efforts at "addressing the current economic and employment crisis, the underlying corruption in many of our countries as well as gender inequalities, which all constitute obstacles to the achievement of child rights".
The massifs constitute an obstacle to traffic; roads and railroads traverse them by means of tunnels and viaducts, which are costly to build.
It cites the EU's position that Israeli settlements in occupied Palestinian territory are "illegal under international law, constitute an obstacle to peace and threaten to make a two-state solution impossible".
