periodic breathing

例句：

1. 1. The earth's climate is subject to periodic changes in temperature and rainfall.
   地球的气候受到温度和降雨的周期性变化的影响。
2. 2. The rhythm of the music was periodic, with each note following a specific pattern.
   音乐的节奏是周期性的，每个音符都遵循特定的模式。
3. 3. The growth cycle of this plant is characterized by periodic flowering and fruiting.
   这种植物的生长周期以周期性的花期和结果期为特征。