用打火石在废弃的滇越铁路隧道内擦亮1001次。

Using flint to polish 1001 hopes in the abandoned Yunnan Vietnam Railway Tunnel.

背景：滇越铁路由法国人建造于1903年，法国殖民者凭借这条铁路，控制了云南的交通，掌握了锡商的命运，操纵了云南的金融，支配了云南的邮政和电讯。在修筑过程中，奴役人数不下二十万，虐待致死近八万人。

Background: The Yunnan-Vietnam Railway was built by the French in 1903. With this railway, French colonists controlled the traffic in Yunnan, mastered the fate of tin merchants, manipulated Yunnan’s finances, and dominated Yunnan’s post and telecommunications. During the construction process, the number of slaves was no less than 200,000, and nearly 80,000 people died from torture.