横向
1
Our home planet
4
Gas essential for breathing
6
Unit of force
8
Positive particle in nucleus
纵向
2
Push or pull on an object
3
Element found in all living things
5
Compound containing oxygen
7
Basic unit of life
9
Nerve cell in the brain
Our home planet
Gas essential for breathing
Unit of force
Positive particle in nucleus
Push or pull on an object
Element found in all living things
Compound containing oxygen
Basic unit of life
Nerve cell in the brain