geologic time scale
(pharmacology) A cephalosporin antibiotic.
A chronological scale of the earth's history used to measure the relative or absolute age of any part of geologic time.
simple past tense of be a man
present participle of gutturize
学生たちは、大量絶滅のような主要な出来事がいつ起こったのかを理解するために、地質時代区分の読み方を学びました。
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