It was very cloudy when we got to Kangding after we got through the 4 kms long Erlangshan Tunnel and drove along the Dadu River in July that year.

• 那年七月的某一天，当我们穿过二郎山隧道，沿着大渡河谷到达康定的时候，天空依旧灰蒙蒙的，还看不出一丝要放晴的迹象来。