Interconvertibility
相变性
🗣️ 情景例句
that Grandpa Philip bought for him.
祖父Philip给他买的。
He who has done ill once will do it again.
干了一次坏事的人会再干第二次。
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。