1. Mine officials earlier found extremely dangerous levels of carbon monoxide in the part of the mine where the men where believed to have been.
2. Industry insiders said entering an airport taxiway without permission is disruptive and extremely dangerous.
3. He warned that " almost uncontained use of military force " was extremely dangerous and unacceptable.
4. The collapse might release huge amounts of the toxic gas in the coal layers, which would be extremely dangerous to those trapped.
5. The lack of mainmast means the lack of power, which is extremely dangerous on the ocean.
6. A common misconception about travelling in Viet Nam is that it's extremely difficult, dangerous and underdeveloped.
7. In Shanghai, many people think that action sport isn't good and they see it as extremely dangerous.
8. A country that dares to challenge historical facts is dishonest and extremely dangerous.
9. The eurozone is at a crossroads and the euro is now in an extremely dangerous situation.
10. We admire their courage and selflessness in performing their duties under extremely dangerous conditions, as well as their faith in humanity.