返青即返青期，指植物的幼苗移栽或越冬后，由黄色变为绿色，并恢复生长的一段时间。
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它不会让我们感觉重返青春，也不会引来女性的顾盼。
我读到一些当地农民说，他们的牧场才刚刚返青，现在已经全是泥巴水。
I was reading that local farmers said their pastures had just turned green and now they're flooded with mud.
通过田间试验研究了返青期不同程度根修剪处理对冬小麦群体结构、土壤水分及产量形成的影响。
A field experiment was conducted to study effects of root pruning at returning green stage on population structure, soil water and yield formation of winter wheat.
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