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The phrase "a challenging course" is correct and usable in written English.
It can be used to describe a class or program of study that requires significant effort and skill from students.
Example: "I enrolled in a challenging course on advanced mathematics to improve my analytical skills."
Alternatives: "a difficult class" or "a demanding program".
Exact(46)
It is the challenge of the course that makes the Open, and this is a challenging course".
Clearly Muirfield is a challenging course.
COS 126 is a challenging course.
The development of adsorbent with the special design for expanded bed process is a challenging course.
Mike Mussina, who dresses six lockers from Pettitte's, admitted that Pettitte must navigate a challenging course.
COS 126 is a challenging course that requires a significant time commitment for most students.
Similar(14)
By competing and succeeding in a truly challenging course at a real university, students who have no other connection with higher education--because they often are the first in their families to complete high school, let alone consider college--receive an emotional boost and a realization that college is possible for them.
A cancer so advanced required, in addition to surgery, a very challenging course of chemotherapy, which was accompanied by debilitating side effects.
As president of Greenwich Country Club he helped oversee the redesign of the golf course into a competitively challenging course.
West New York attorney Joe DeMarco said: "It will provide a very challenging course.
A full-time lecturer at San Jose State University in California, Mary Poffenroth has found ways to make the large-lecture format engaging for students while delivering a robust, challenging course.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com