Tricuspid regurgitation the backflow of blood from the right ventricle into the right atrium, owing to imperfect functioning (insufficiency) of the tricuspid valve.是什么意思_Tricuspid regurgitation the backflow of blood from the right ventricle into the right atrium, owing to imperfect functioning (insufficiency) of the tricuspid valve.在线翻译_英语_读音_用法_例句