Moreover, the police commissioner, who is in charge of the mayor's personal security and tends to accompany him on some of his most difficult duties, like responding to the death of a police officer, tends to form a personal bond with his boss.
Selection of appropriate materials for a distinct mechanism is one of the most difficult duties in the design and product developments in various industrial applications.
She added: "Then as now, they perform their duties in often the most difficult and dangerous of circumstances, both at home and overseas".
As fathers, it is our duty to explain even the most difficult issues to our children.
Like Sergeant Major Yosef, most of the 12 soldiers who are assigned the difficult duty of protecting the Jewish shrine in Palestinian-ruled Nablus are Druse, Arabic-speaking followers of an Islamic sect who, unlike Israeli Arabs, serve in the army.
I thought I would do my patriotic duty and try to answer the most difficult of these questions for you, the Canadian Googler.
Danielle Murphy, whose late husband -- a former Phoenix police officer -- was shot dead in the line of duty, said her husband's death benefit helped her family get through the most difficult time in their lives.
Since taking office, Mr. Obama has said that his most difficult task is to sign letters of condolence to families of service members killed in the line of duty.
The most difficult decision.
Dinner is the most difficult.
