evolution of stars的用法和樣例：
例句
- An understanding of the stellar energy sources is still more vital for the problem of stellar evolution.
弄清恆星的能源對恆星演化的研究是更為關鍵的問題。 - Third, it is important to derive from the observations irrefutable evidence that the earliest phases in the evolution of protostars do occur.
第三個重要任務是要由觀測得到不可辯駁的證據來證明原恆星演化中的一些最早期現象確實能發生。
