Pra
abbr. 涂料研究协会（Paint Research Association）；初级速率存取（Primary Rate Access）；脉冲张弛放大器（pulse relaxation amplifier）
🗣️ 情景例句
The school was attended almost entirely by local children.
上这所学校念书的几乎全是当地的孩子。
Do you have any brothers or sisters?
你有兄弟或姐妹吗？
First of all, I will outline the characteristics of our product.
首先我将简略说明我们商品的特性。