我有一个白板擦。
I have a white board eraser, and I'm not afraid to use it!
我有一个白板擦，而我并不害怕使用它！
He was a great proponent of simplicity, saying once, “An architect’s most useful tools are an eraser at the drafting board and a wrecking bar at the site.”
他是一个伟大的简单性倡导者，他曾说过：“一个建筑师最有用的工具是草图板上的橡皮擦。”
The teacher wiped out with an eraser what she had written on the board.
在老师看见之前，把黑板上的那些字擦掉。
The teacher wiped out with an eraser what she had written on the board.
在老师看见之前，把黑板上的那些字擦掉。
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