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。
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。
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。
There is significant progress has been made in corneal tissue engineering.
组织工程化角膜的研究开展至今已取得长足的进步。
There is significant progress has been made in corneal tissue engineering.
组织工程化角膜的研究开展至今已取得长足的进步。
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