tightly close to heart
紧紧贴近心
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Valve regurgitation is a condition in which valves don't close tightly, allowing blood to flow backward across the valve. Symptoms include shortness of breath, fatigue and heart palpitations.
瓣膜回流是由于瓣膜关闭不全，致使血液通过瓣膜回流，症状包括呼吸短促、疲劳和心悸。
youdao
应用推荐
模块上移
模块下移
不移动