资料来源 : pyDict

当副词

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Adverbially \Ad*ver"bi*al*ly\, adv.
   In the manner of an adverb.

资料来源 : WordNet®

adverbially
     adv : as an adverb; "the prepositional phrase here is used
           adverbially"