The phrase "a unique duty to" is correct and usable in written English.
It can be used when discussing a specific responsibility or obligation that is distinct or singular in nature.
Example: "As a leader, I feel I have a unique duty to inspire and motivate my team to achieve their goals."
Alternatives: "a special responsibility to" or "a distinct obligation to".
As Commander-in-Chief, our president has the unique duty to make difficult decisions on the global stage as he tries his best to exercise vital leadership in such a turbulent and uncertain world.
This would be a mistake... Her history demonstrates that Johnsen can and will separate law from politics and discharge the OLC's unique duty to assess the constitutionality and legality of executive initiative and legislative proposal.
In an ensemble of cross-bridges interacting with one actin filament, like the conditions in every muscle or motility assay, only one actin velocity is possible, and hence, motility velocity vm is the same for each unitary step-size, implying each step-size has a unique duty cycle.
Because they know the tricks of deception, their thinking goes, they have a unique ability, and a special duty, to teach people how not to get duped.
They were driven, Briggs said, by a duty to preserve a unique community-building event.
Known as an outspoken advocate for the conservation movement in the United States, he was later described by his biographer Edward Renehan as "a literary naturalist with a duty to record his own unique perceptions of the natural world".
The European commission says that a duty to protect unique ecosystems has to be balanced with the much-needed boost that a motorway could provide to industries such as tourism and road haulage.
If innovation means breaking paradigms and trying to make something unique, tech trailblazers have a duty to seek out new creative pathways like Uruguay, which could become a vital part of that path to innovation.
Southern conservatism finds freedom and equality, by its unique definitions, through adherence to a social hierarchy based on race, Christianity, a male duty to protect women, and a commodity-driven economy.
