横向
1
Split into equal parts
3
Part of a line with two endpoints
4
Lines that never intersect
5
Rectangular array of numbers
6
Exact correspondence on both sides
9
Result of raising a number to an exponent
纵向
2
Space between two intersecting lines
4
Total distance around a shape
6
Collection of distinct elements
7
Round shape with all points equidistant
8
Divisible by two