Ectohumus
[地质]外腐殖质
🗣️ 情景例句
You should write about your education first.
你应该在开头就谈到你的教育情况。
This nation is noted for its economic stability.
这个国家以经济稳定闻名。
The examination put a lot of stress on him.
那次考试给了他很大的压力。