到2020年，我们必须在2006年的基础上减少80%的碳排放，到2040年将世界人口稳定在80亿，彻底消除贫困，恢复森林和土壤。

We must cut carbon emissions by 80% from their 2006 levels by 2020, stabilize the world's population at eight billion by 2040, completely remove poverty, and restore forests and soils.

youdao

此外，我们必须通过社会互动来维持人性——而且是相当稳定的社会互动。

Moreover, our humanness must be sustained through social interaction—and fairly constantly so.

youdao

因为我们必须保持价格稳定所以通货膨胀目标是可怕的。

Inflation targets are horrible because we must have price stability.

youdao