資料來源 : pyDict

拔開塞子,打開…的口,除去障礙

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Unstop \Un*stop"\, v. t. [1st pref. un- + stop.]
   1. To take the stopple or stopper from; as, to unstop a
      bottle or a cask.

   2. To free from any obstruction; to open.