Fortifications
大学 Collegen. 防御工事（fortification的复数）
🗣️ 情景例句
I continued to teach piano lessons at home.
我继续在家教钢琴。
No man is born wise or learned.
人非生而知之。
Please give us your proposal if you're ready for that.
如果你们愿意做合资经营，请提出你的方案。