改革将在3年内逐步实施。

The reforms would be phased in over three years.

《柯林斯英汉双解大词典》

2007年，印度尼西亚开始逐步实施一项计划：在特定条件下向其最贫困的居民提供资金，比如要求人们让孩子接受教育或接受常规医疗保健。

In 2007, Indonesia started phasing in a program that gives money to its poorest residents under certain conditions, such as requiring people to keep kids in school or get regular medical care.

youdao

诺德豪斯将这一长期逐步实施的建议称为“渐进式气候政策”。

Nordhaus calls this recommendation for a policy that builds gradually over a long period the “climate-policy ramp.”

youdao