He calls it the "clear button."

他称之为“清除”按钮。

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The Clear button is used to clear any existing mapping.

Clear 按钮用于清除所有已存在的映射。

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Listing 5 prints a message when the Clear button is clicked.

清单5在单击clear按钮时输出一条消息。

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Mr. Poxley leaned over and pressed the Clear button on his adding machine.

NEWYORKER: Idols

And there was one button I steered clear of completely.

WSJ: In the Driver's Seat

The Australian was comfortably clear of Honda's Jenson Button, who was the fastest man on the track in the final stint of the race.

BBC: SPORT | Motorsport | Formula One | Raikkonen cruises to Spanish win