题目内容
背诵句型填空
为挽救那个患癌症的男孩的所有尝试都无济于事。
All attempts to rescue the boy with cancer were _________ _________.
答案:in,vain
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题目内容
背诵句型填空
为挽救那个患癌症的男孩的所有尝试都无济于事。
All attempts to rescue the boy with cancer were _________ _________.