许多现行的捕捞方式是不可持续的，并威胁着海洋生态系统。

Many current fishing practices are ___unsustainable and threaten marine ecosystems.

对自然资源的不可持续利用是全球可持续发展面临的一项重大挑战。

The ___unsustainable use of natural resources is a major challenge for global sustainability.

我们的社会必须摆脱不可持续的消费和生产模式。

Our society must move away from ___unsustainable patterns of consumption and production.