出版第一本书是他写作生涯的重要里程碑。
Publishing his first book was a significant milestone in his writing career.
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milestone英 /ˈmaɪlstəʊn/|美 /ˈmaɪlstoʊn/
解释
milestone 由 mile（英里）和 stone（石头）组成，原指古代道路旁标记里程的石碑，引申为"人生或事业中的重要阶段或转折点"。
Publishing his first book was a significant milestone in his writing career.
milestone 由 mile（英里）和 stone（石头）组成，原指古代道路旁标记里程的石碑，引申为"人生或事业中的重要阶段或转折点"。