He was a callow youth when he joined the newspaper.
他进报社时还是个乳臭未干
小子。

而无经验
;羽毛未丰
He was a callow youth when he joined the newspaper.
他进报社时还是个乳臭未干
小子。
He was only a callow youth.
他只是个无经验

人。
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