粮食问题其实已经在世界范围内发生了。
世界粮食生产的不平衡是农业生态系统及其管理部门的一个问题。
The world food imbalance is a problem of agricultural ecosystems and their management.
可能在这个世界上没有什么问题比粮食对一个人乃至整个国家的生存更为重要了。
Perhaps no issue in this world is as basic to individual and national survival as food.
可能在这个世界上没有什么问题比粮食对一个人乃至整个国家的生存更为重要了。
Perhaps no issue in this world is as basic to individual and national survival as food.
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