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Use "fours" in a sentence
"Also, we are making a kind of postage stamp border - a double row of 1 squares, which we are putting together in fours to start, so I might do some of those as well."
"I prefer to use loads much like Dave described in the manner of heavy fours from a Benelli SBE or Browning O/U."
"The blocks aren't completely sewn together - but they are in fours and sixes, so it won't take long."