Undersoil
n. 底土, 下层土
🗣️ 情景例句
He appeared ill at ease at the party.
他在宴会上显得很拘谨。
No, I'm not.
不，我不是。
modern states 'invest'in institutions of learning to get back 'interest'
现代国家对教育机构投资，收回的"利息