道路不平坦、被损坏，而且危险。

The pathways were uneven, broken and dangerous.

《柯林斯英汉双解大词典》

对于掌权者而言，这使得历史作为一门学科不仅毫无用处，而且危险。

For those in power, this makes history as a discipline not only useless but dangerous too.

youdao

我建议你经常提醒自己，你的老板疯了，很坏，而且危险。

I suggest you constantly remind yourself that your boss is mad, bad and dangerous to know.

youdao

And also, it's useful because harmful stimuli are noticed but when something has shown itself to be part of the environment you don't notice it anymore.

而且它还是非常有用的,因为危险刺激会吸引到你的注意,但当某物被视为环境的一部分时,你便不会再去注意到该物体。

耶鲁公开课 - 心理学导论课程节选

Well it's the law and if you got in an accident, it would be very dangerous.

由于法律已经规定了，而且如果你们遇上事故的话确实会很危险。

Make sure 课堂 - SpeakingMax英语口语达人

The grandi are more dangerous and fickle.

大人物更危险而且反复无常。

耶鲁公开课 - 政治哲学导论课程节选