MYA
plural of fistfight
Initialism of million years ago.
simple past tense and past participle of downgrade
(astronomy) The teardrop-shaped region around a star in a binary system within which orbiting material is gravitationally bound to that star.
恐竜は約6600万年前、巨大な小惑星の衝突を受けて絶滅しました。
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DiQt
Free
★★★★★★★★★★
