你為什么認為數(shù)學(xué)書有那樣的數(shù)學(xué)題呢？
Why do you think that math books have so math problems?
艾米把數(shù)學(xué)書落在家了。
Amy had left her math book at home.
我正找我的數(shù)學(xué)書，我找不到了。
I am reading a very interesting book, which is about mathematics.
英語書，語文書，數(shù)學(xué)書
English book, Chinese book, math book
昨天查了數(shù)學(xué)書：截距一定是正的，它是某一軸上坐標的絕對值。
Distance: The length or numerical value of a straight line or curve.