Testbed
[计] 试验台
🗣️ 情景例句
Speaking of school, how are your grades this term?
谈到学业，你这学期的成绩如何？
What does your father do?
你父亲做什么工作？
its movement would be recorded in ink upon its surface.
纸的表面就会用墨水记录下地板运动的情况。