释义
a telephone connection that has been wrongly made with the result that another call or calls can be heard
（电话的）串线。
双语例句
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The issue of sovereignty is a red line that cannot be crossed.
主权问题是一条不能跨越的红线。
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Three horses crossed the finish line together.
3匹马同时冲过终点线。
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The two horses crossed the finishing line together.
两匹马同时越过终点线。
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Then they crossed the state line into Mississippi.
然后他们跨越州界线来到了密西西比州。
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I normally never write into magazines but Mr. Stubbs has finally crossed the line.
我通常是从不给杂志写信的，但斯塔布斯先生最后太出格了。