例句 /

BACKGROUND Reversible left ventricular dysfunction precipitated by emotional stress has been reported, but the mechanism remains unknown.

BACKGROUND Reversible left ventricular dysfunction precipitated by emotional stress has been reported, but the mechanism remains unknown.

背景研究人员已报告了由情感应激所引起的可逆性左心室功能障碍,但对其机制尚不了解。