重 点
Chemical means involving or resulting from a reaction between two or more substances, or relating to the substances that something consists of. 化学的
adjective [原级] 化学的，与化学有关的
...chemical reactions that cause ozone destruction. … 导致臭氧破坏的化学反应。
noun [专属名词] 化学品，化学制品；成瘾的药物
Chemicals are substances that are used in a chemical process or made by a chemical process. 化学物; 化学制品
后缀: al
【adjective】 表示具有某种性质的 - indicating pertaining to or characterized by
原词: chemical
是通过后缀 【al】 构成的派生词
- chemical 出现在下面的课文中（提供视频、音频及笔记等可系统性学习）
- Lesson 15 Secrecy in industry
- Lesson 43 Are there strangers in space?
- Lesson 45 Of men and galaxies
