"How many squares" 用英语表达为 "How many squares?"。
这句话的来源是英语中的基本问句结构，通常由一个疑问词（如"how"，"what"，"when"等）开头，后面跟一个或多个宾语和谓语。
下面是一些例句：
How many squares are in this picture? (这张图里有多少个正方形？)
Can you count how many squares are in this quilt? (你能数一下这个被子里有多少个正方形吗？)
How many squares are needed to make this pattern? (这个图案需要多少个正方形？)