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Use "sum up" in a sentence
"The hard facts are these: If we sum up the easy, cost-effective eco-efficiency measures we should all embrace, the best we get is a slowing of the growth of environmental damage..."
"I can sum up our marriage in a line I spoke when I played the great pitcher Grover Cleveland Alexander, a line spoken by him in life to his wife, Aimee: “God must think a lot of me to have given me you.”"
"On CBS, Eric Sevareid and Walter Cronkite tried to sum up the momentous events."