rough estimate

برآورد تقریبی
مقدار تخمینی
حساب سرانگشتی
به عنوان مثال :
1 - I can't tell you exactly how long it'll take, but I can give you a rough estimate
2 - Can you give me a rough estimate of the cost?

منابع

• https://www.englishclub.com/ref/esl/Collocations/R/rough_estimate