然后，土地若被荒废，则会发生次生演替，植物在更适宜的土壤中生长得更快。

If the land is then abandoned, a secondary succession will take over, developing much faster on the more hospitable soil.

youdao

恰恰相反，这里的生活更像是炼狱：砍倒的树木，荒废的土地，以及被摧毁的年轻一代的精神世界。

On the contrary, life here is for many closer to purgatory, the trees hacked down, the soil ravaged, and the spirit of many of the young men broken.

youdao

土地是宝贵的，一寸土地也不能让它荒废。

Land is valuable. Not an inch of land is allowed to lie waste.

youdao

Soil was being eroded and wasted along the Eastern seaboard, and they were using up the great soils of the Mississippi Valley and over time that slave system just somehow wasn't going to work out.

东部沿海地区的土地因被侵蚀而荒废掉,密西西比河谷地区的土地资源即将被耗尽,但就在这种情况下,奴隶制依然能维持南方的经济

耶鲁公开课 - 美国内战与重建课程节选