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Use "alternations" in a sentence
"P Composite is the pattern of long-term alternations between up - and down-trends."
"One of the alternations was a new set of seats, which had already been fixed by the time we visited."
"Those who haven't bought into the climate change hype say the e-mail leak shows that scientists have been conspiring to hide evidence about global warming, which they argue could be caused naturally by changes such as alternations in the Earth's orbit and solar energy and solar wind output."