Underdense
欠密的
🗣️ 情景例句
I don't know.
我不知道。
None so blind as those who won't see.
最瞎莫如视而不见。
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。