Patients with atrial fibrillation are at risk of thrombus formation, which usually develops in left atrial appendage (LAA) or cavity.是什么意思_Patients with atrial fibrillation are at risk of thrombus formation, which usually develops in left atrial appendage (LAA) or cavity.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句