横向
1
Substance with pH above 7
4
Our home planet
5
The Red Planet
7
Disturbance that transfers energy
纵向
2
Measure of matter in an object
3
Mass per unit volume
6
Icy body with a tail near the sun
8
Form of thermal energy
Substance with pH above 7
Our home planet
The Red Planet
Disturbance that transfers energy
Measure of matter in an object
Mass per unit volume
Icy body with a tail near the sun
Form of thermal energy