横向
1
Ball of burning gas in space
4
Path of a planet around the sun
5
Positive particle in nucleus
7
Force that attracts objects together
8
Unit of heredity
10
Push or pull on an object
纵向
2
Infectious microscopic agent
3
Unit of power
5
Tectonic landmass section
6
Nerve cell in the brain
9
Gas essential for breathing