例句：
Going into the projects alone is dangerous.
只身進入公房區(qū)是危險的。
It is dangerous to generalize about the poor.
對窮人一概而論是危險的。
It's not just stupid—it's downright dangerous.
這豈止是愚蠢—簡直是危險。
We were in grave danger.
我們處于極大的危險之中。
Sensing danger, they started to run.
他們感到有危險，撒腿就跑。
The sign said 'Danger: falling rocks'.
警示牌上寫著“危險：前有滾石”