As noted, Ecuador's request is for eight years (until September 2017) on the basis that work to address all challenges mentioned in paragraph 3 above would be addressed province by province.
4. 如上所述，厄瓜多尔请求延长8年(至2017年9月)，其依据是：解决以上第3段中列举的所有挑战的工作是一个省一个省进行的。