The White House said on Thursday that President Trump had been diagnosed with chronic venous insufficiency, a condition that occurs when veins have trouble moving blood back to the heart. 白宫周四表示，特朗普总统被诊断出患有慢性静脉功能不全，这是一种当静脉难以将血液有效回流至心脏时出现的疾病。 The White House…