例句：
The equation of wealth with happiness can be dangerous.
把財富與幸福等同起來可能是危險的。
Going into the projects alone is dangerous.
只身進入公房區是危險的。
It's known as the most dangerous part of the city.
人們都認為那是市內最危險的地段。
I need hardly tell you that the work is dangerous.
這工作很危險，這就不用我說了。
It would be dangerous for you to stay here.
你待在這兒不安全。