Technicalness
n. 专门性；技术性
🗣️ 情景例句
What do you do for a living?
你是做什么的？
I'm looking for a half-time job.
我在找半工半读的工作。
The further off this solid obstruction, the longer time will elapse for the return of the echo.
固体障碍物越远。回声返回所用时间就越长。