移动掩蔽物

例句：

1. 1. The painter masked the window with a curtain to hide his work.
   画家用窗帘遮住窗户以隐藏他的工作。
2. 2. The thief tried to mask the sound of his footsteps by making noises in the other room.
   小偷试图通过在另一个房间里制造噪音来掩盖他的步伐声。
3. 3. The scientist used a masking tape to cover up the scratches on the surface of the glass.
   科学家使用胶带覆盖玻璃表面的刮痕。