At a banquet that welcomed Kissinger's second visit to China, Premier Zhou said, "(Restoration of Sino-US relations) is due to Chairman Mao and President Nixon. Of course, there must be someone who is a leader. This leader is Dr. Kissinger . ". this means:. ["Kissinger's visit to China marks the normalization of Sino-US relations.", 'Kissinger played a decisive role in promoting the improvement of Sino-US relations.', 'Chairman Mao and President Nixon are agents of improvement in Sino-US relations.', 'Kissinger lays the foundation for improved Sino-US relations.']