لغت دوازدهم از درس ۹ کتاب ۵۰۴ …………………………. Source / sɔrs /sɔːs / Place from which something comes or is obtained The college student knew that he needed more than a basic textbook as a source for his report. The source of Buddy’s trouble was boredom. Professor Smith’s speech was a valid* source of information on chemistry مکانی که …
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