| 词汇 | thesaurus_back-when |
| 释义 | back whenadverb These are words and phrases related to back when. Click on any word or phrase to go to its thesaurus page. PREVIOUSLYSynonymspreviously before earlier at one time once a while back a while ago formerly in times past long ago heretofore earlier on sometime back AGOSynonymsago before back gone since past |
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