Emergency workers in Serbia have been preparing for what they call a flood wave on one of the country's main rivers the Sava. _______________________________ The rain has, now, stopped in Belgrade, but flood waters from neighboring Croatia and Bosnia are expected to flow down the River Sava, raising the water level so much that it could burst its banks. 面对萨瓦河可能造成的洪灾,塞尔维亚急救人员已经做好应对准备._________________________贝尔格莱德地区雨势已停,但邻国克罗地亚和波斯尼亚的洪水有可能会流到萨瓦河里,造成水位升高,冲破河堤.