1
fitness for sth
表示适合某事物或某角色。
The candidate's fitness for the job is unquestionable.
这位候选人胜任这份工作的能力毋庸置疑。
适合；合宜
先理解核心含义，再看它在真实句子里的用法。
适合；合宜
the quality of being suitable
The candidate's fitness for the job is unquestionable.
这位候选人胜任这份工作的能力毋庸置疑。
适合、合适或恰当的状态。
The condition of being fit, suitable or appropriate.
培养有吸引力和/或健康的体型。
The cultivation of an attractive and/or healthy physique.
生物或物种在寻找配偶和繁殖后代方面的成功程度。
An organism's or species' degree of success in finding a mate and producing offspring.
She goes to the gym every morning to improve her overall fitness.
她每天早上都去健身房，以提高她的整体健康水平。
The doctor recommended a balanced diet and regular exercise for better fitness.
医生建议均衡饮食和定期锻炼，以获得更好的健康状态。
Many companies offer fitness programs to help employees stay healthy.
许多公司提供健身项目来帮助员工保持健康。
表示适合某事物或某角色。
The candidate's fitness for the job is unquestionable.
这位候选人胜任这份工作的能力毋庸置疑。
表示适合做某事的能力或条件，常用于法律或正式语境。
He must prove his fitness to drive after the accident.
事故后他必须证明自己适合驾驶。
指身体健康状态，是常见搭配。
Regular exercise improves your physical fitness.
定期锻炼能提高你的身体素质。
用于量化或评价健康状况。
This test assesses your current fitness level.
这项测试评估你目前的健康水平。
Not this
He has a good fitness.
Use this
He has good fitness.
Fitness 是不可数名词，不能用不定冠词 'a' 修饰。
Not this
She does fitness every day.
Use this
She works out every day.
Fitness 是状态名词，不能用作活动；日常锻炼应使用 'work out' 或 'exercise'。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
身体健康
Regular exercise is important for good physical fitness.
定期锻炼对保持良好的身体健康很重要。
健康水平
My fitness level has improved since I started running.
自从我开始跑步以来，我的健康水平提高了。
健身计划
She follows a strict fitness routine every morning.
她每天早上都坚持严格的健身计划。
健身目标
Setting realistic fitness goals helps you stay motivated.
设定现实的健身目标有助于保持动力。
健身中心
I go to the fitness center three times a week.
我每周去三次健身中心。
提高健康水平
You can improve your fitness by doing cardio exercises.
你可以通过做有氧运动来提高健康水平。
适用性
The product must meet the criteria of fitness for purpose.
产品必须符合适用性标准。
受审能力
The court evaluated his fitness to stand trial.
法院评估了他的受审能力。
Fitness Gram Pacer Test是一项多阶段有氧能力测试，随着进行难度逐渐增加。
Fitness includes the ability to perform the pacer test well.
健身包括很好地完成pacer测试的能力。
Use fitness naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
fit（健康）+ ness（名词后缀）→ 健康、适合的状态。
通常用于健康与健身领域（如体育锻炼、体能测试）或描述事物的适合性（如设备适用性、资格审查）。中性偏正式，具体语境取决于修饰对象。
通常不可数
Dictionary facts from ECDICT, WIKTIONARY.