Polysulfones
[化] 聚砜; 聚砜类
🗣️ 情景例句
Um...Alexandra, let me introduce you.
噢……Alexandra 让我来介绍一下。
To know how to wait is the great secret of success.
懂得如何等待是成功的秘诀。
People who work in offices are frequently referred to as white-collar workers' for the simple reason that they usually wear a collar and tie to go to work.
坐办公室的之所以常常被称作“白领工人”，就是因为他们通常是穿着硬领白衬衫，系着领带去上班。