mit ganzer Kraft; mit ganzer Energie; mit äußerster Anstrengung; so gut man kann; mit aller Kraft
lifetime supply; lifetime's worth (of something)
greatest mistake of one's life
something that will last a lifetime (esp. high-quality products)
once in one's life; once in a lifetime
Überleben um Haaresbreite
extremely important or once in a lifetime (request); only once in one's lifetime
advancing in the face of death; having a narrow escape from the jaw of death
(strict) observance of the Buddhist precept of lifelong celibacy
honesty is the best policy
something that will last a lifetime (esp. high quality product)
striving to adopt ascetic practices for one's whole life