危险性

例句：

1. 1. The climb was extremelydangerous and required special training.
   这次攀登极其危险，需要特殊训练。
2. 2. Theroad is dangerously narrow, with no guardrails.
   这条路非常狭窄，没有护栏。
3. 3. Thehikers were warned about the dangersof crossing the river in this area.
   徒步者被警告过河时的危险。