例句與造句

1. background reversible left ventricular dysfunction precipitated by emotional stress has been reported, but the mechanism remains unknown
   背景研究人員已報告了由情感應激所引起的可逆性左心室功能障礙，但對其機制尚不了解。
2. It's difficult to find left ventricular dysfunctions in a sentence. 用left ventricular dysfunctions造句挺難的