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preferentially + verb
preferentially 通常放在实义动词前，修饰该动词，表示以优先的方式做某事。
The committee preferentially selects experienced candidates.
委员会优先选择经验丰富的候选人。
优先地；偏重地
先理解核心含义，再看它在真实句子里的用法。
优先地；偏重地
in a way that gives preference or priority
The committee preferentially selects experienced candidates.
委员会优先选择经验丰富的候选人。
优先地；按优待方式。
in a preferential manner
有利地；优越地。
advantageously
The organization distributes aid preferentially to the poorest regions.
该组织优先向最贫困地区分发援助。
Applicants with experience are treated preferentially during the selection process.
在选拔过程中，有经验的申请人被优先对待。
The router preferentially connects to the 5GHz band when both are available.
当两个频段都可用时，路由器优先连接5GHz频段。
preferentially 通常放在实义动词前，修饰该动词，表示以优先的方式做某事。
The committee preferentially selects experienced candidates.
委员会优先选择经验丰富的候选人。
被动语态中，preferentially 放在 be 和过去分词之间。
Local suppliers are preferentially considered for new contracts.
本地供应商在新合同中被优先考虑。
Not this
The hotel gives preferentially treatment to its regular guests.
Use this
The hotel gives preferential treatment to its regular guests.
preferentially 是副词，不能像形容词那样作定语修饰名词 treatment；应改用形容词 preferential。副词 preferentially 只用来修饰动词、形容词或整个句子，例如 treat someone preferentially。
Not this
Please send your application preferentially by email.
Use this
Please send your application preferably by email.
preferentially 表示“以优先或偏重的方式”，指动作在方式上偏向某对象；而 preferably 表示“最好、更可取地”，用于提出建议。句中要表达“最好用电子邮件”，所以应使用 preferably。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
优先对待；优待
The company tends to treat its long-term clients preferentially.
公司倾向于优先对待其长期客户。
优先选择
The algorithm selects preferentially the items with high ratings.
该算法优先选择评分较高的项目。
优先分配
The government decided to allocate preferentially funds to rural education.
政府决定优先向农村教育分配资金。
优先响应；优先应答
The immune system may respond preferentially to certain pathogens.
免疫系统可能优先响应某些病原体。
优先表达（常用于生物学）
This gene is preferentially expressed in brain tissue.
该基因在脑组织中优先表达。
优先结合（如分子生物学）
The protein binds preferentially to certain DNA sequences.
该蛋白质优先结合某些DNA序列。
Use preferentially naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
拆成 prefer（偏爱）+ entially（副词后缀），偏爱谁就先给谁，即“优先地、偏袒地”。
语域：formal 常见场景：academic writing、scientific/medical literature、formal reports preferentially 是比较正式的表达，多用于学术或科技/医学文献，表示“优先地、有倾向地”。日常口语中更常用 preferably 或 in a preferential way。
这些词中，differentially、essentially、potentially、confidentially 与 preferentially 押韵：重读元音 /e/ 及后续 /nʃəli/ 相同（拼写均含 -tially）。especially 拼写也有 -ially，但读作 /ɪˈspeʃəli/，无 /n/ 音，不押韵。
Dictionary facts from ECDICT, WIKTIONARY.