- variant 变体，变种
- The virus has developed a new variant.
- follow 采用，遵循
- We follow the scientific method in our experiments.我们在实验中采用科学方法
- A structured approach should be followed when writing code.编写代码时应遵循结构化的方法
- vertex(单数)/vertices(复数) 顶点
- digraph （short for directed graph）有向图
- thereof 其中的（用来避免前面重复的名词）（书面词汇）
- The contract and the terms thereof are binding.合同及其条款具有约束力
- He failed to provide proof thereof.他未能提供相关证据
- stepwise 逐步的
- complement/complementary set 补集
- implementation 实施/执行