Underpinning
n. 基础材料, 支承结构
✅ 同义词
🗣️ 情景例句
to buy a new house.
来买一栋新房子。
You'd better go and see a doctor about that.
关于那个毛病，你最好去看医生。
She also likes them to borrow the books. But she is very strict.
她也喜欢他们来借书。但她对大家非常严格。