🧩 词语组成解析
a. 急流的；旺盛的
🗣️ 情景例句
Good-bye, Susan.
再见， Susan。
No,it isn't.
不，不是。
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。