She became ill again, but she still worked hard at farming research.
她又病了，但是她仍致力于农业研究工作。
The farming system approach is divided into farming system analysis and farming system research.
农作系统方法可划分为农作系统分析和农作系统研究。
Scientific research has greatly lowered down the risks in farming.
科学研究已大大降低了农业的风险。
Scientific research has greatly lowered down the risks in farming.
科学研究已大大降低了农业的风险。
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