求翻译：日美同盟也是对中国影响最为深远的一个同盟，研究冷战后的日美同盟对于我们准确把握周边环境，适时调整对外政策也有重要的帮助。是什么意思？

Japan-US alliance is an alliance of China's most far-reaching impact, the Japan-US alliance in the study after the Cold War for us to accurately grasp the surrounding environment, timely adjustment of foreign policy is also important to help.

It is also on the Japan-US alliance in China's most far-reaching an alliance after the cold war, the US-Japan alliance for our surrounding environment accurately timely foreign policy also has an important help.

The Japanese and American union also is affects a profoundest union to China, after the research cold war Japanese and American union regarding our accurate assurance peripheral environment, at the right moment adjusts the foreign policy also to have the important help.

The Japan-us Alliance is an Alliance of the most far-reaching impact on China, study of us-Japan Alliance after the cold war, we accurately grasp on the perimeter, adjust foreign policy also has significant help.

正在翻译，请等待...