maths book=math book。数学书;数学课本;
math是美式英语；maths是英式英语；都是mathematics的缩写.
例句：It is the last topic for her Olympian math book.
那是她那本奥数书的最后一讲了。
My math book is in the drawer of the desk.
我的数学书在课桌的抽屉里。
