The storms could increase the risks posed by river blockages.暴風(fēng)雨會(huì)增加因河道堵塞所造成的危險(xiǎn).An angiogram shows the location and severity of blockages in blood vessels.冠狀動(dòng)脈造影能夠顯示血管內(nèi)的阻塞位置以及阻塞的嚴(yán)重程度.Blockages can calls head tax cause hea...