不采取行动可能会对环境造成灾难性的后果。

Failure to act could have ___disastrous consequences for the environment.

她工作上经历了灾难性的一周，多个项目都失败了。

She had a ___disastrous week at work, with multiple projects failing.

在没有适当研究的情况下仓促做决定可能是一个灾难性的举动。

Making a hasty decision without proper research can be a ___disastrous move.