If you can't afford fresh, then buy frozen green vegetables such as spinach.
如果你买不起新鲜蔬菜的话，就买冷冻的绿色蔬菜，比如菠菜。
The preservation of green color of compound spinach juice was studied in the experiment.
试验研究了菠菜复合汁的绿色保护问题。
The preservation of green color of compound spinach juice was studied in the experiment.
试验研究了菠菜复合汁的绿色保护问题。
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