研究发现的改善土壤的第五种方法是减少农作物耕作。
And the fifth way that the study found may improve sorghum production is to reduce crop tillage .
微波热疗是一种于手术、放疗、化疗及免疫治疗之外的治疗恶性肿瘤的第五种方法。
The microwave hot therapy is the fifth method of cancer besides surgery, radiotherapy, chemotherapy and immunity treatment for malignant tumor.
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