persist
美 [pər'sɪst] 
英 [pə(r)'sɪst] 
- v.保持;持续存在;维持;顽强地坚持
 - 网络固执;存留;持久
 
过去分词:persisted  现在分词:persisting  第三人称单数:persists  
persist
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1.  | [i][t] 顽强地坚持;执着地做to continue to do sth despite difficulties or opposition, in a way that can seem unreasonable  | 
Why do you persist in blaming yourself for what happened? 你何必为已发生的事没完没了地自责?  | |
She persisted in her search for the truth. 她执着地追求真理。  | |
He persisted with his questioning. 他问个不停。  | |
‘So, did you agree or not?’ he persisted. “那么你同意了没有?”他叮问道。  | 
2.  | [i] 维持;保持;持续存在to continue to exist  | 
If the symptoms persist, consult your doctor. 如果症状持续,就去看医生。  |