arduously

the researchers arduously collected data for their study.

he arduously worked to complete the project on time.

she arduously climbed the steep mountain path.

the team arduously negotiated a peace treaty.

they arduously sought funding for their non-profit.

the artist arduously refined his painting technique.

the engineers arduously tested the new software.

the students arduously prepared for the final exam.

the detective arduously investigated the crime scene.

the author arduously researched the historical period.

the company arduously strived to increase profits.