Don't see substantial progress.

完全看不到实质性的进展。

She said the U. S. has made substantial progress over the years.

她提到，多年来，美国已取得了实质性的进展。

Over the past 3 decades, China-EU relations have made substantial progress.

30年来，中欧关系取得了长足发展。

China has recently made substantial progress in addressing sanitation issues.

近年来中国在解决卫生问题方面取得了显著成就。

The Army and Navy, however, have made substantial progress during the past year.

陆军和海军，在过去的时期有了相当大的进步。