横向
1
Biological catalyst
3
Reddish electrical conductor
4
Mass per unit volume
5
The Red Planet
8
Substance with pH below 7
纵向
2
Substance with pH above 7
3
Icy body with a tail near the sun
6
Fourth state of matter
7
Naturally occurring inorganic solid
9
Infectious microscopic agent
10
Chemical element in table salt