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The site shows example sentences for English words. How the word or phrase could be used in a sentence?
" ... The Earth, moving in its orbit around the Sun and spinning on its axis, appears to make a closed, ... [+] unchanging, elliptical orbit. If we look to a high-enough precision, however, we'll find that our planet is actually spiraling away from the Sun, which causes its orbital speed to very slightly decrease over time. ... "