变异 biànyì variation
怎么记住“变异”: 变 change + 异 different = variation.
汉字
用法
- 'Variation / mutation' - a biology term: 基因变异 (jīyīn biànyì) genetic mutation, 病毒变异 viral mutation.
- Note it can be verb or noun. In genetics/epidemiology it's the standard word for organisms changing form; became very common in pandemic news.