Abaculus
镶嵌用的小石[玻璃]砖, 嵌块
🗣️ 情景例句
How about cleaning up a bit around here?
你是不是该把这儿收拾一下？
What time does the train for Boston leaves?
去波士顿的火车几点开？
No, it isn't.It's a ruler.
不，不是，这是一把尺子。