exist;be present 兩國(guó)人民之間～傳統(tǒng)友誼。There exists a traditional friendship between the two peoples./人們的社會(huì)～決定人們的思想。Man’s social being determines his thinking./矛盾～于一切事物發(fā)展的過(guò)程中。Contradiction is present in the process of development of all things.