yī shēng
all one's life
throughout one's life
yī shēng yī shì
a whole lifetime (idiom); all my life
jiǔ sǐ yī shēng
nine deaths and still alive (idiom); a narrow escape
new lease of life
kē xué jì shù shì dì yī shēng chǎn lì
Science and technology is the number one productive force (from 1978 speech by Deng Xiaoping 鄧小平|邓小平 introducing the Four Modernizations 四個現代化|四个现代化).