横向
1
Icy body with a tail near the sun
4
Positive particle in nucleus
6
Second lightest element
纵向
2
Substance with pH above 7
3
Nerve cell in the brain
5
Force that attracts objects together
7
Path of a planet around the sun
8
Particle of light
Icy body with a tail near the sun
Positive particle in nucleus
Second lightest element
Substance with pH above 7
Nerve cell in the brain
Force that attracts objects together
Path of a planet around the sun
Particle of light