Abaculus
鑲嵌用的小石[玻璃]磚, 嵌塊
??? 情景例句
How about cleaning up a bit around here?
你是不是該把這兒收拾一下？
What time does the train for Boston leaves?
去波士頓的火車幾點開？
No, it isn't.It's a ruler.
不，不是，這是一把尺子。