1 ADJ 非常坚硬的 Something that is rock-solid is extremely hard. 非常坚硬的
2 ADJ 十分可靠的;可信赖的;不易改变的 If you describe someone or something as rock-solid, you approve of them because they are extremely reliable or unlikely to change. 十分可靠的;可信赖的;不易改变的 [approval]
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Mayhew is a man of rock-solid integrity.
梅休是一个正直可靠的男人。
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I'll need rock solid proof.
我需要确凿的证据。
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The firm is rock-solid financially.
这个公司经济实力非常可靠。
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The pound was rock solid at 2.88 Deutschmarks.
英镑非常坚挺，对德国马克的比率是1比2.88。
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