The first route of expansion is from Bay of Bengal to Bay of Siam, and then to low Burma, finally occupied up Burma.

第一路扩张的重点在孟加拉湾至暹罗沿海，大规模的殖民扩张是从缅甸沿海向下缅甸推进，最后征服上缅甸；

youdao

There's this low pressure system sitting out in the Bay of Bengal which is sort of nudging up exactly to the same area which is going to dump, I think it's 200 millimeters of rain, a huge amount of rain.

NPR: Myanmar Still Barring Relief, Reporters