Methods 60 patients with malignant pleural effusion were randomly divided into trial group and control group, and each group was 30 patients.是什么意思_Methods 60 patients with malignant pleural effusion were randomly divided into trial group and control group, and each group was 30 patients.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句