Translation of "persevere" into Chinese

I was surprised by his perseverance.

我对他的坚持感到很惊讶。

Above all, it required a great amount of endurance and perseverance.

这一切改变最需要我们保持忍耐,坚持下去。

A political solution that does justice to all those elements will inevitably be of great complexity and will need to be negotiated with perseverance.

一项公正对待所有这些要素的政治解决办法势必极为复杂,也需要坚持不懈地进行谈判。