横向
1
Unit of energy
4
Gas essential for breathing
6
Biological catalyst
8
Our home planet
纵向
2
Compound containing oxygen
3
Absolute temperature scale unit
5
Force that attracts objects together
7
Precious yellow metallic element
Unit of energy
Gas essential for breathing
Biological catalyst
Our home planet
Compound containing oxygen
Absolute temperature scale unit
Force that attracts objects together
Precious yellow metallic element