1to commit one's energy to
2to devote oneself to
3to sacrifice one's life for
4(coll.) (of a woman) to give one's virginity to
Example
wǒ我rèn wéi认为zhè xiē这些shì是zhí de值得wéi为zhī之xiàn shēn献身de的yuán zé原则。
我认为这些是值得为之献身的原则。
I think these are principles worth dying for.