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He ripped away a wire that led to the alarm button.
他把连接报警按钮的电线扯掉了。
《柯林斯英汉双解大词典》
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A test button and LED allow for occasional verification of battery performance.
一个测试按钮和LED允许对电池性能偶尔验证。
youdao
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A test button and LED allow for occasional verification of battery performance.
一个测试按钮和LED允许对电池性能偶尔验证。
youdao