語彙集

"The stop sign is shaped like an octagon."

"The singer's voice could easily reach the higher octave."

"The bright pink building was an oddity in the small town."

"Her career has been an odyssey of challenges and achievements."

"The police caught the offender quickly."

"She gave an offhand reply to his serious question."

"The priest will officiate the wedding ceremony."

"The company's losses were offset by gains in other departments."

"The startup was an offshoot of a major tech company."

"The bird carefully fed its offspring."

"The doctor prescribed an ointment for the burn on his arm."

"The nation was ruled by a wealthy oligarchy that controlled all resources."

"Many people consider a black cat crossing your path a bad omen."

"Dark clouds gave an ominous sign of an approaching storm."

"Her omission of important details caused confusion."

"In the digital age, social media feels omnipresent in our lives."

"Humans are generally considered omnivorous creatures."

"Fulfilling the contract proved to be an onerous task for the company."

"The onset of winter brought cold winds and snow."

"The village faced an onslaught of enemy forces."

"The onus is on the government to provide relief to the victims."

"Blood began to ooze from the small cut."

"The windows were opaque with steam."

"The new law is now operative across the country."

"She arrived at an opportune moment to help."

"He is seen as an opportunist who always puts his interests first."

"The regime continued to oppress its citizens."

"The people fought against political oppression."

"The oppressive heat made it difficult to work outside during the summer."

"The optic nerve carries signals from the eye to the brain."

"The optical illusion fooled everyone at the exhibition."

"She studied optics to understand how lenses work."

"Tasks should be allocated optimally for maximum output."

"The company focused on optimization of resources to maximize profits."

"They optimized the software for faster performance."

"Optimized irrigation techniques conserve water in farming."

"This room temperature provides the optimum conditions for plant growth."

"The optometrist prescribed new glasses for her."

"She studied optometry at the university to become an eye specialist."

"In ancient Greece, people visited the oracle at Delphi for guidance."

"The orator captivated the audience with his eloquence."

"The politician's oratory impressed the crowd."

"He successfully orchestrated the company's expansion."

"The attacks were orchestrated with precision."

"The white orchid on the windowsill bloomed for months."

"The bishop will ordain three new priests this Sunday."

"The survivors went through a terrible ordeal after the earthquake."

"The ordinal number 'third' indicates position in a sequence."

"The city council passed an ordinance banning smoking in public parks."

"The map helps tourists orient themselves in the city."