operation blank的用法和樣例：
例句
- Serve the game with the operation of space above and below spiking control direction.
遊戲操作空格發球與扣球上下左右控制方向。
operation blank的相關資料：
臨近單詞
operation net
operation
operation of opening laboratories
operation with special permission
operation maintenance and support
operation of modulus and exponent
operation decision support system
operation of push-button switch
operation of symmetric difference
operation and control information
operation speed calculation method
operation of Hasner valve incision
