Section ADirections: Translate the following paragraph(s) into English (with the given words or phrases).21.改革开放以来，中国人民生活水平不断提高，这在人们的饮食（diet）变化上得到充分体 现。如今，人们不再满足于吃得饱，而是追求吃得更加安全、更加营养、更加健康，食物也愈来愈丰富 多样，不再限于本地的农产品。物流业 (logistics industry) 的发展使人们很容易品尝到 全国各地的特产。毫无疑问，食品质量与饮食结构 的改善为增进人们健康提供了有力的保障。

完整翻译如下： Since the reform and opening up, the living standards of the Chinese people have been continuously improving, which is fully reflected in the changes in people's diets. Nowadays, people are no longer satisfied with just having enough to eat, but pursue safer, more nutritious, and healthier food. Food is becoming increasingly diverse and varied, no longer limited to local agricultural products. The development of the logistics industry makes it easy for people to taste specialties from all over the country. Undoubtedly, the improvement of food quality and dietary structure provides strong guarantees for enhancing people's health.