Descending

来自Big Physics

google

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Middle English: from Old French descendre, from Latin descendere, from de- ‘down’ + scandere ‘to climb’.


文件:Ety img descending.png

wiktionary

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From descend +‎ -ing.

取自“https://www.bigphysics.org/index.php?title=Descending&oldid=49891”