度一场清秋爱一生之久
[dù yī chăng qīng qiū ài yī shēng zhī jiŭ]
Here it conveys the idea of spending a clear autumn with love that lasts a lifetime. '度' means to spend or pass through; '一场清秋' portrays the scene and atmosphere of a whole clear autumn; '爱一生之久' is the deep emotional expression of loving for as long as one's life, embodying people's longing and expectation for true love.