1
system/method/process + whereby + clause
whereby 在此作关系副词，相当于 by which，引导定语从句，修饰前面的名词。
They adopted a new policy whereby employees can work remotely.
他们采纳了一项新政策，员工据此可以远程工作。
由此；借此；凭此
先理解核心含义，再看它在真实句子里的用法。
由此；借此；凭此
by which; through which
They adopted a new policy whereby employees can work remotely.
他们采纳了一项新政策，员工据此可以远程工作。
正式用语，常用于定语从句。
凭此
By which.
The new policy allows remote work, whereby employees can save a lot of commuting time.
新政策允许远程办公，借此员工可以省下大量通勤时间。
We signed a contract, whereby both sides agree to share the costs.
我们签了一份合同，由此双方同意分担费用。
She made a clear plan, whereby each team member knew what to do next.
她制定了一份清晰的计划，借此每个团队成员都知道接下来该做什么。
whereby 在此作关系副词，相当于 by which，引导定语从句，修饰前面的名词。
They adopted a new policy whereby employees can work remotely.
他们采纳了一项新政策，员工据此可以远程工作。
此用法较正式且少见，相当于 how 或 by what means。
Whereby can we achieve our goal?
通过什么方式我们才能实现目标？
Not this
Whereby did you find the solution?
Use this
How did you find the solution?
whereby作为疑问副词'通过什么'在现代英语中不用于直接疑问句，应用疑问词how。
Not this
He studied hard, whereby he passed the exam.
Use this
He studied hard; therefore, he passed the exam.
whereby是关系副词，引导定语从句，不能像连词therefore一样连接独立句子表示结果。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
据此协议
We signed an agreement whereby we would share the profits equally.
我们签署了一项协议，据此我们将平均分配利润。
通过该体系
The system whereby workers are paid bonuses is very effective.
工人通过该体系获得奖金的做法非常有效。
通过该过程
The process whereby cells divide is called mitosis.
细胞通过该过程分裂称为有丝分裂。
凭借其手段
They sought a means whereby they could reduce costs.
他们寻求一种能够降低成本的手段。
通过此安排
We have an arrangement whereby we take turns driving the kids to school.
我们有一个轮流送孩子上学的安排。
凭借其机制
The mechanism whereby the machine operates is quite complex.
这台机器运行的机制相当复杂。
Use whereby naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
where（哪里）+ by（通过）→ 通过哪里？即‘因此’或‘靠那个’。想象问‘办法在哪里？’就是whereby。
register: formal; typical settings: legal documents, formal letters, academic writing. note_zh: 通常用于正式文体，多出现在法律、学术或官方文件中。
表示‘通过那个’或‘凭那个’，常用于正式语境。
Dictionary facts from ECDICT, WIKTIONARY.