横向
1
Infectious microscopic agent
3
Positive particle in nucleus
6
Smallest unit of an element
8
Measure of matter in an object
纵向
2
Path of a planet around the sun
4
Chemical element in table salt
5
Reddish electrical conductor
7
The Red Planet
Infectious microscopic agent
Positive particle in nucleus
Smallest unit of an element
Measure of matter in an object
Path of a planet around the sun
Chemical element in table salt
Reddish electrical conductor
The Red Planet