cumulative compound

例句：

1. 1.The accumulation of data over time is a key factor in understanding the behavior of populations.
   随着时间的推移，数据积累是理解人口行为的关键因素。
2. 2. The compound's chemical properties are similar to those of its parent compounds.
   该化合物的化学性质与它的母体化合物相似。
3. 3. The cumulative effect of these factors has led to significant changes in the environment.
   这些因素的累积效应已经导致环境发生了显著变化。