Data over the last 20 years shows that there has been significant progress in preventing and curing visual impairment in many countries.

过去20年的数据显示，许多国家在预防和治疗视力损害方面取得了重大进展。

youdao

Taken together, this shows that while there has been significant progress in restoring the Gulf one year after the start of the disaster, there is still a long way to go.

总的来说，这表明，虽然在过去的一年里，一些措施已经取得了重大进展，但重建墨西哥湾仍然有一条很远的路要走。

youdao

There has been significant progress in microbicide research and development in the past 15 years. Over 30 compounds or formulations are undergoing preclinical or clinical studies.

在过去的15年里，杀微生物剂的研究和开发取得了显著的进展，已有30多种化合物或制剂进入临床前或临床研究阶段。

youdao

Biden said there has been significant progress in addressing the threat posed by Iran's nuclear program.

VOA: standard.2010.02.14

"I come away with a sense that there has been significant progress since I've been here 10 months ago, " he said.

CNN: Cheney: Five years in Iraq a 'successful endeavor'

There has been significant progress in development in a number of African countries in recent years, mainly because of big investments from China, cheap anti-retroviral drugs, increased aid and the cancellation of debt which enabled better spending in schools and health care systems.

BBC: Downturn 'risks Africa conflict'

But it is a country in which there has been very significant progress.

NPR: Petraeus: 'Long, Hard Slog' In Iraq