1·The police play a vital role in our society.
警察在我们的社会中起着极其重要的作用。
—— 《牛津词典》
2·Not just for health reasons, but also because it plays a vital role in protecting the environment.
不仅是因为健康的原因，还因为它在保护环境中扮演着重要的角色。
3·Travel, except during the Dark Ages, has continued to grow and, throughout recorded history, has played a vital role in the development of civilisations and their economies.
除了在黑暗时代之外，旅游业一直在持续发展壮大，并且贯穿有记录以来的历史，始终在各文明及其经济的发展中扮演着至关重要的角色。
4·Here, the horse was already becoming the animal of prestige in many regions, though sheep, goats, and cattle could also play a vital role.
此时，尽管绵羊、山羊和牛也会发挥非常重要的作用，马已经成为许多地区人们眼中珍贵的动物。
5·But other shareholders have played a vital role.
但是其他的股东也扮演着举足轻重的角色。
6·Earthworms play a vital role in food production.
在粮食生产方面，蚯蚓扮演极为重要的作用。
7·Disks play a vital role in the LAMP architecture.
磁盘在LAMP架构中扮演着重要的角色。
8·Exchange rate is one of them, which plays a vital role.
汇率也是其中发挥重要作用的一味药。
9·Radioisotopes have a vital role to play in modern medicine.
放射性同位素在现代医学中占有重要位置。
10·Commercial Banks play a vital role in providing liquidity.
商业银行在提供流动性上扮演这十分重要的角色。