Prestressing
预加应力; 预拉伸
🗣️ 情景例句
How much do I owe you?
我应付多少？
I usually feel timid in the presence of very bright people.
站在聪明人面前，我感到羞怯。
Mum, I don't feel very well.
妈妈，我感到不舒服。