With the rapid economical development, China's position on the international stage is getting more and more important.
随着经济迅速发展,中国在国际舞台上的地位变得愈来愈重要了。
The student is showing rapid progress in his studies.
这个学生学习上进步很快。
The rapid spread of the disease is alarming the medical authorities.
这种疾病的迅速蔓延使医疗当局感到忧虑不安。