Tetrapolis
n. 四城镇(组成的)地区,四城镇(组成的)城邦, 四城镇行政区
🗣️ 情景例句
Come on, Philip!
快点， Philip。
When an opportunity is neglected,it never comes back to you.
机不可失，时不再来；机会一过，永不再来。
Bison waste no longer fell on the ground to improve the soil, which as a result became less good for growing plants.
地上不再有野牛的粪便来改良土壤，结果对于植物生长土壤变得不够肥沃了。