Last Updated：2025/11/23
Sentence
科学者たちは、その化石化したサンゴ礁が数千万年にわたって発達したと推定している。
Quizzes for review
Scientists estimate that the fossilized reef developed over tens of megannums.
See correct answer
Scientists estimate that the fossilized reef developed over tens of megannums.
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Related words
megannums
Noun
form-of
plural
Japanese Meaning
百万年（1,000,000年）。「megannums」は「megannum」の複数形であり、単位として用いられる場合、百万年を意味します。
English - English
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