yield/boost/organic等核心词汇 — 英语填空题
题目
After a three-year trial, the research team decided to adopt ___1___ farming (有机的) on the test plots. This change can ___2___ the soil's water-holding capacity (使增长), and the new system now ___3___ about 20% more corn per hectare than the traditional one (出产).