要改变这种局面，必须严肃认真地持续削减产量。
Changing that would require a serious, sustained cut in supply.
要改变这种局面，必须要规范蔬菜种植中化肥、 农药的使用。
To change this situation, we must standardize the using of fertilizers and pesticides in the growing of vegetables.
要改变作文教学的这种落后局面，就必须走出“经验”的误区，进行作文教学的理论建设，实现作文教学理论的科学化。
To improve this situation, we should not just rely on experience, but to build up scientific theories for composition teaching.
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