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vt.& vi.使坚固（firm的过去式与过去分词形式）...
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The jelly firmed quickly.果冻迅速坚硬起来。At least the bank situation had firmed up.至少银行的形势已经更加明朗了。The voice firmed with decision.嗓音变得果断坚定。The ground rules have been firmed up...基本原则已得到进一步强化。His face firmed and he spoke with res...
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The ground rules have been firmed up.基本原则已得到进一步强化。At least the bank situation had firmed up.至少银行的形势已经更加明朗了。His face firmed and he spoke with restrained anger.他把脸一沉,按捺着火气说话....