have seniority over sb
seniority 在此作不可数名词，表示‘更长的服务时间带来的更高地位’。介词 over 后接比较对象。
Because she started earlier, she has seniority over the new recruits.
因为她入职更早，所以她的资历比新员工深。
资历；年资；老资格
seniorities — plural of seniority
资历；按成员服务时间长短衡量并授予资历较长者特权的标准；因服务时间长而获得的更高职位；长寿的特性；长辈；老资格；[经] 资历
资历；按成员服务时间长短衡量并授予资历较长者特权的标准
A measure of the amount of time a person has been a member of an organization, as compared to other members, and with an eye towards awarding privileges to those who have been members longer.
因服务时间长而获得的更高职位
higher rank than that of others especially by reason of longer service
长寿的特性
the property of being long-lived
He got the promotion because of his seniority in the company.
他因为在这家公司的资历而得到了晋升。
用法提示：seniority 在此作名词，表示因服务年限长而享有的资历。
In many workplaces, employees are paid according to seniority.
在许多工作场所，员工的薪资按资历计算。
用法提示：seniority 在此指资历，即工作年限带来的地位。
She has enough seniority to lead the team.
她有足够的资历领导这个团队。
用法提示：seniority 此处指资历或老资格，体现了因工龄长而拥有的地位。
seniority 在此作不可数名词，表示‘更长的服务时间带来的更高地位’。介词 over 后接比较对象。
Because she started earlier, she has seniority over the new recruits.
因为她入职更早，所以她的资历比新员工深。
be based on 是常用被动结构，表示‘以…为依据’。若要对比其他标准，可用 rather than 带出。
In many companies, promotion is based on seniority rather than merit.
在许多公司，晋升的依据是资历而非才能。
X 用数字或表达时间长度的词代替，如 many, several, twenty。表示‘拥有多少年的资历’。seniority 前不加不定冠词，因为它通常不可数。
He has fifteen years of seniority at this hospital.
他在这家医院有十五年的资历。
常用于按资历决定顺序的正式语境，可替换 seniority；也用于其他因素的排列。
强调被优先考虑或处理的权利，不必然基于资历；若要替代 seniority，需说明优先由工龄带来。
grammar · medium
易错句子He has many seniorities in the company.
正确表达He has a lot of seniority in the company.
seniority 是不可数名词，不能用 many 或复数形式来表示“很多资历”；表示程度时应用 a lot of 或 much。
grammar · medium
易错句子He got promoted because of his senior.
正确表达He got promoted because of his seniority.
because of 后需接名词，senior 是形容词或指“上司/年长者”的名词，而“资历”这个抽象概念应使用名词 seniority。
grammar · medium
易错句子He has seniority than his colleague.
正确表达He has more seniority than his colleague.
比较结构要用 more + 不可数名词 + than，不能省略 more，否则句子缺少比较级标记。
作为 seniority（资历、年资）的反义词，指服务年限较短或地位较低；仅用于等级或任职时长的对比，不用于年龄大小。
seniority 是抽象名词，指“资历、年资”；senior 指“前辈、上级”这类具体的人，或作形容词表示“资深的、年长的”。要表达因工龄长而获得的地位时用 seniority，要指具有那种身份的人时用 senior。
seniority 指因服务年限长而得到的资历或较高地位；priority 指在处理事情、分配资源时“优先”于其他事的地位或权利，与工龄长短无关。
seniority 指由于年资长而产生的资历，superiority 指质量、能力或实力上的优越/优势。二者词形相近，但 seniority 说的是资历，superiority 说的是优越性。
按资历
Promotions at this company are decided by seniority.
这家公司的晋升是按资历决定的。
资历制度
The union defended the seniority system for layoffs.
工会维护裁员时按资历排队的制度。
资历级别
Employees at a higher seniority level get more vacation time.
资历级别较高的员工有更多假期。
服务年限
Pay raises depend on length of seniority.
加薪取决于服务年限。
年资权利
Seniority rights protect older workers during downsizing.
年资权利在裁员时保护老员工。
资历常是晋升和职业发展的重要考虑因素。
资历往往与长期积累的经验和工作年限相关。
资历决定员工在组织等级体系中的地位。
资历越高，员工享受到的福利和待遇通常也越多。
资历会影响养老金的计算和退休待遇。
按资历顺序
Office assignments are made in order of seniority.
办公室分配按资历顺序进行。
凭借资历
She got the promotion by virtue of seniority.
她凭借资历获得晋升。
资历有它的特权
The senior staff chose their holidays first—seniority has its privileges.
资深员工先选假期——资历有它的特权。
Dictionary facts from ECDICT, WIKTIONARY.