subtly
 (ad.)敏銳地,巧妙地,精細地
 Sub·tly adv. In a subtle manner; slyly; artfully; cunningly.
    Thou seest how subtly to detain thee I devise.   --Milton.
 2. Nicely; delicately.
    In the nice bee what sense so subtly true.   --Pope.
    Subtly communicating itself to my sensibilities, but evading the analysis of my mind.   --Hawthorne.
 3. Deceitfully; delusively. [Obs.]
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 subtly
      adv : in a subtle manner; "late nineteenth-century French opera at
            its most beautiful, subtly romantic with a twilight
            melancholy"