Objective To observe and analyse the clinical curative effects and toxical effects of gastrointestinal cancer patients treated with low dose 5-FU and low dose PDD.是什么意思_Objective To observe and analyse the clinical curative effects and toxical effects of gastrointestinal cancer patients treated with low dose 5-FU and low dose PDD.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句