该项目包括一些起初不明显的间接成本。

The project includes ___indirect costs that are not obvious at first glance.

她的话是对管理层决定的间接批评。

Her remark was an ___indirect criticism of the management's decision.

人类行为通常对环境变化产生间接影响。

Human actions often have an ___indirect effect on environmental changes.