Nowadays the ___________ for travelling is shifted from shopping to food and scenery.
A few months after he had arrived in China, Mr. Smith ___________ in love with the people and culture there.
唐朝诗人张若虚《春江花月夜》中的“人生代代无穷已，江月年年只相似”两句诗蕴涵着时间一维性的哲理。下列诗句中蕴涵相同哲理的是