为了...而死的英文：
die for

The die is cast
木已成舟

The die is cast.
木已成舟。

To die a natural death (to die in one's bed)
寿终正寝

Leaves die, fall, and shrivel.
叶子凋零、飘落枯萎了。

My love for you will never die.
我对你的爱永不止息。