持续存在用英语怎么说？

持续存在

例句

• The persistence of this dead tissue furthers the injury. 这种坏死组织的持续存在使损伤加剧.
• If the symptoms persist, it is important to go to your doctor. 如果这些症状持续存在，一定要去看医生。
• If the probe sequence is able to hybridize tothe target, it will theand its fluorescence persists. 如果探针序列能够和目标杂交, 它将不和金属微粒区结合,荧光持续存在.
• A continuously open wound inhibits anabolism. 持续存在的开放伤口,会抑制合成代谢.
• A constant threat of unemployment hangs over thousands of university researchers... 持续存在的失业威胁困扰着数千名大学科研人员。