Underpinning
n. 基础材料, 支承结构
✅ 同义词
🗣️ 情景例句
How's the parade?
行怎么样
Please do now hesitate to as any questions.
如有问题您可随时提出来。
But I must ask my parents first. What time shall I come?
不过我必须先问问父母。我几点钟来呢？