before your time  a) before you were born or before you started working or living somewhere 在 ...出生[开始工作，到某地生活]之前；早于...的时代：They say he was a great actor but that was before my time.他们说他是个伟大的演员，但那时我还没有入行。 b) if you do something especially get old, before your time, you do it before the time when most people usually do it in their lives 过早[尤指变老]：He seemed to grow into an old man before his time.他似乎过早地衰老了（摘自《朗文当代高级英语辞典》第六版 time 43）