Translation of "Extreme" in Chinese

Extreme cold covered Europe.

一股寒流侵袭了欧洲。

Extreme is my decay.

我是多么的衰弱啊！（请核对原文是否有误）

Extreme joy begets sorrow.

乐极生悲。

- He holds an extreme opinion on education.
- Regarding education, he has extreme opinions.

关于教育，他持极端意见。

Your proposal is a bit extreme.

你的建議有點極端。

His way of thinking is a bit extreme.

他的思考方法有点极端。

Those who love too much, hate in like extreme.

愛得深，恨得也深。

I don't want to lose my ideas, even though some of them are a bit extreme.

我不想放弃我的想法，虽然一些想法有点极端。

- A cold front swept over Europe.
- Extreme cold covered Europe.
- A cold snap spread across Europe.

一股寒流侵袭了欧洲。