填介词,说明理由,He embarked ________ a new career as a teacher.

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填介词,说明理由,
He embarked ________ a new career as a teacher.

on
embark on sth
着手,从事 做某事

on 或者upon。意思是‘从事......事业’

on 这是固定词组

on // upon
embark on 从事
类似词组 take on , engage in