横向
1
The Red Planet
3
Naturally occurring inorganic solid
5
Biological catalyst
6
Center of an atom or cell
7
Reddish electrical conductor
纵向
2
Substance with pH below 7
3
Tissue that contracts for movement
4
Second lightest element
The Red Planet
Naturally occurring inorganic solid
Biological catalyst
Center of an atom or cell
Reddish electrical conductor
Substance with pH below 7
Tissue that contracts for movement
Second lightest element