cumulative
adjective uk/ˈkjuː.mjə.lə.tɪv/ us/ˈkjuː.mjə.lə.t̬ɪv/
累积的；渐增的
increasing by one addition after another
The cumulative effect of using so many chemicals on the land could be disastrous. 使用大量化学物质经年累月会对土地造成灾难性的后果。
Synonym: accumulative