资料来源 : pyDict

看不见地,看不出地

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

Invisibly \In*vis"i*bly\, adv.
   In an invisible manner. --Denham.

资料来源 : WordNet®

invisibly
     adv : without being seen; "these organisms enter the body
           invisibly" [ant: {visibly}]