湄公河水壩監控上線 美中加劇東南亞角力

<img src="https://static.rti.org.tw/assets/thumbnails/2019/10/30/eba9a3b7447d1b155948686c499a3e90.jpg" width="360" alt="湄公河下游(lower Mekong)河段首座水力發電大壩札...