give or take idiom       
 相差不到…,出入至多…
possibly a little more or less than the amount or time mentioned
  It'll be ready at 6:00, give or take a few minutes. 这个6点就会准备好,顶多相差几分钟。 
 It cost £200, give or take . 它的价格为200英镑,出入不会太大。 
 
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