• 持续的咳嗽

persistent gas持久性毒气persistentadj.坚持的；连续的；固执的Persistent convolutions of aortic arch主动脉弓持续卷曲persistent primitive hypoglossal artery残留性原始舌下动脉Persistent left posterior cardinal vein左后主静脉续存persistent anomalous muscle connections永久性异常肌肉连接persistently ask for overdue payment.持久地寻找逾期贷款。Persistent occipital posterior position持续性枕后位persistent base-line fungal infection持续性基线期真菌感染persistent hyperplastic primary vitreous持续增生性原始玻璃体persistent common atrioventricular canal房室总管存留, 房室共道永存Persistent State Definition Language PSDL是持久状态定义语言

1. She's developed a chronic cough.
   她的咳嗽已成了一种慢性病。
2. This medicine may loosen your cough.
   此药可减轻你的咳嗽。