"鞠躬尽瘁死而后已"的英文翻译是什么?

鞠躬尽瘁,死而后已:

1. to serve one's country devotedly until death
2. bend one's back to the task until one's dying day; give one's all till one's heart stops beating
3. bending one's backs to the task until one's dying day

Premier Zhou En-lai worked hard all his life in behalf of the Chinese revolution.
周恩来总理毕生为中国革命鞠躬尽瘁。