transition phenomenon

例句：

1. 1. The transition from summer to autumn is marked by changes in temperature and precipitation.
   从夏天到秋天的转变，以温度和降水的变化为标志。
2. 2.During the transition period, it's important to ensure that all systems are functioning properly.
   在过渡期间，确保所有系统都正常运行是很重要的。
3. 3. The transition of power between two leaders is a complex process that requires careful planning.
   两位领导人之间的权力转移是一个复杂的过程，需要仔细规划。