An infertile person, animal, or plant cannot have babies, produce young, or produce new plants.

It has been estimated that one in eight couples is infertile. 据估计，每8对夫妇中就有1对不能生育。

Infertile land or soil is not good enough for plants or crops to grow well there.

Poor farmers have little choice but to try to grow food in this infertile soil. 可怜的农民别无选择，只有在这些贫瘠的土地上种点儿吃的。