• be on dangerous ground
  • (人を怒らせるような)微妙な状況[話題]を取り扱う
  • chemicals that are dangerous to humans health
  • 人間の健康に危険な化学物質
  • dangerous animals
  • どう猛な動物
  • It may be dangerous to assume ....
  • …と頭から決め込むのはよくない
  • play a dangerous game
  • 危険な賭けをする
  • A list of dangerous animals that was drawn up included 13 lions, 6 tigers, 2 leopards, 1 cheetah, 2 tigons, 3 other small cats and several bears.
  • Wikipedia: Belle Vue Zoological Gardens
  • Additionally, carbon dioxide and ozone gases can prove dangerous if ventilation is inadequate.
  • Wikipedia: Gas metal arc welding
  • Additionally, gases like carbon dioxide and ozone can form, which can prove dangerous if ventilation is inadequate.
  • Wikipedia: Shielded metal arc welding
  • After the Allied victory, her son, Louis, was offered the post of Viceroy of India, but she was deeply opposed to his accepting, knowing that the position would be dangerous and difficult.
  • Wikipedia: Princess Victoria of Hesse and by Rhine
  • Asphalt was added on top of the concrete for 20 miles (32 km) south from Swede's Cut in 1922, and in 1924 a number of dangerous blind curves were widened and straightened.
  • Wikipedia: Ridge Route
  • At Los Alamos, Slotin's duties consisted of dangerous criticality testing, first with uranium in Otto Robert Frisch's experiments, and later with plutonium cores.
  • Wikipedia: Louis Slotin
  • Based on the Morgan Quitno Press 2008 national crime rankings, Cleveland ranked as the 7th most dangerous city in the nation among US cities with a population of 100,000 to 500,000 and the 11th most dangerous overall.
  • Wikipedia: Cleveland
  • By 1997, US 666 was named one of the 20 most dangerous highways in the United States.
  • Wikipedia: U.S. Route 491
  • By the late 18th century Lyme Regis had become a popular seaside resort, especially after 1792 when the outbreak of the French Revolutionary Wars made travel to the European mainland dangerous for the English gentry, and increasing numbers of wealthy and middle class tourists were arriving there.
  • Wikipedia: Mary Anning
  • Cattle rustling, originally a rite of passage for young men in the plains areas of Madagascar where the largest herds of cattle are kept, has become a dangerous and sometimes deadly criminal enterprise as herdsmen in the southwest attempt to defend their cattle with traditional spears against increasingly armed professional rustlers.
  • Wikipedia: Madagascar
  • Extratropical cyclones can also be dangerous when their low-pressure centers cause powerful winds and high seas.
  • Wikipedia: Tropical cyclone
  • Feeding unweaned kits with cow's milk rather than a kitten replacement milk or a similar product can be dangerous to their health.
  • Wikipedia: Raccoon
  • Government air transport regulations permit the transport of plutonium by air, subject to restrictions on other dangerous materials carried on the same flight, packaging requirements, and stowage in the rearmost part of the aircraft.
  • Wikipedia: Plutonium
  • Gritting vehicles are also dangerous to overtake; as grit is scattered across the entire roadway, loose pieces can damage the paintwork and windows of passing cars.
  • Wikipedia: Winter service vehicle
  • He was aware of the addictive and dangerous nature of some of his drugs, and pioneered the concept of giving such drugs only to people who had first seen a physician to determine if they needed the medicine.
  • Wikipedia: Eli Lilly
  • However, work did not resume in the spring of 2000, and in 2001, a salvage expert hired by Green Atlas claimed the stern should not be removed because it would create a dangerous work environment.
  • Wikipedia: New Carissa
  • Hydrogen can react spontaneously and violently at room temperature with chlorine and fluorine to form the corresponding hydrogen halides, hydrogen chloride and hydrogen fluoride, which are also potentially dangerous acids.
  • Wikipedia: Hydrogen
  • If the Sun were crowded amongst other systems, the chance of being fatally close to dangerous radiation sources would increase significantly.
  • Wikipedia: Planetary habitability
  • In fact however, looking at the Sun during an eclipse is as dangerous as looking at it outside an eclipse, except during the brief period of totality, when the Sun's disk is completely covered (totality occurs only during a total eclipse and only very briefly; it does not occur during a partial or annular eclipse).
  • Wikipedia: Solar eclipse
  • In the process he made alliances with the Pope and the resurgent west, invaded Sicily, successfully handled the passage of the dangerous Second Crusade through his empire, and established a Byzantine protectorate over the Crusader states of Outremer.
  • Wikipedia: Manuel I Komnenos
  • Investigations of sidestream smoke suggest it is more dangerous than direct smoke.
  • Wikipedia: Lung cancer