the applicability of sth to sth
表示某事物对另一事物的适用性时，常用 the applicability of A to B 结构。
The researchers questioned the applicability of the laboratory results to real-world settings.
研究人员质疑这些实验室结果对现实环境的适用性。
适用性；应用性
事物适用的程度。；应用性；[法] 适用性；适应性
relevance by virtue of being applicable to the matter at hand
事物适用的程度。
The degree to which a thing is applicable.
The applicability of this law to online sales remains unclear.
这项法律对在线销售的适用性仍不清楚。
用法提示：applicability 为名词，意为“适用性”，与 to 连用引出适用范围。
We tested the applicability of the training program in several different departments.
我们在几个不同的部门测试了该培训计划的适用性。
用法提示：applicability 为名词，作动词 test 的宾语，表示“适用性”。
The applicability of this safety rule under extreme weather conditions needs further study.
这条安全规则在极端天气条件下的适用性需要进一步研究。
用法提示：applicability 为名词，表示“适用性”，后接 under 说明所适用的条件。
表示某事物对另一事物的适用性时，常用 the applicability of A to B 结构。
The researchers questioned the applicability of the laboratory results to real-world settings.
研究人员质疑这些实验室结果对现实环境的适用性。
常与 assess、examine、question 等动词搭配，表示评估或质疑适用性。
We need to assess the applicability of the new regulation before implementation.
在实施之前，我们需要评估这项新法规的适用性。
用 broad 或 wide 修饰时强调适用范围广，用 narrow 或 limited 强调适用范围有限。
The principle has broad applicability across different industries.
这一原则在不同行业中具有广泛的适用性。
最常用，语气中性；与 applicability 最为接近，常可互换，但更强调与讨论主题的相关性。
正式用语，强调与当前议题直接相关；多用于书面或法律语境，比 relevance 更正式，日常口语少用。
grammar · medium
易错句子The applicability of this rule in practice is difficult.
正确表达The application of this rule in practice is difficult.
applicability 指‘适用性’，不是‘应用/实施’。这里想表达‘实际应用这条规则很难’，应使用 application。不能把 applicability 误当作 application。
grammar · medium
易错句子This rule has no applicability for this case.
正确表达This rule has no applicability to this case.
名词 applicability 与形容词 applicable 一样，搭配介词 to 表示‘对…适用’。用 for 是对中文‘对…’直译造成的错误，应改为 to。
grammar · medium
易错句子This theory is not applicability to modern society.
正确表达This theory is not applicable to modern society.
系动词 is 后面要接形容词作表语。applicable 是形容词‘适用的’，applicability 是名词‘适用性’，不能直接作系动词的表语。应改为 applicable。
与 applicability（适用性）相对，指不适用于当前情形。
applicability 的定义强调 relevance，此词表示与当前事务无关，语义相反。
侧重不适合，与 applicability 的“适用”形成对比，但更强调匹配度。
与 applicability 相反，表示在特定场合不恰当，偏重规范或情境。
applicable 是形容词，表示“能应用的、合适的”，修饰名词；applicability 是名词，表示“适用性”这一抽象概念。使用时不能混用词性：可以说 the rule is applicable，不能说 the rule is applicability。
application 指“应用的行为”或“正式申请”，是具体的动作或事物；applicability 指“是否适用的性质”。如 the application of the law（法律的实施）与 the applicability of the law（法律的适用性）含义不同。
adaptability 指“为适应新环境而改变的能力”，主要修饰人或生物；applicability 指“对某一情况或问题是否适用”，多用于规则、方法等。虽然中文都可译成“适应性”，但语义不同。
一般适用性
The rule has general applicability in all cases.
该规则在所有情况中具有一般适用性。
广泛适用性
This framework has broad applicability across industries.
这一框架在各行业具有广泛的适用性。
实际适用性
The study focuses on the practical applicability of the theory.
该研究关注这一理论的实际适用性。
有限适用性
The results have limited applicability to other regions.
这些结果对其他地区的适用性有限。
直接适用性
The new regulations have direct applicability to all member states.
新法规对所有成员国具有直接适用性。
ability
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ability
ap- (朝向) + plic (折叠) + -ability (可…的性质)；同根词：apply, application, applicable；同前缀词：appear, appoint, appeal；同后缀词：capability, responsibility
判断某规则是否适用，往往需要先明确其适用范围。
适用性通常取决于具体语境或背景条件。
评估适用性时需依据明确的标准。
理论或规则的适用性常依赖其前提假设。
在具体情形下才能判断某做法是否适用。
Dictionary facts from ECDICT, WIKTIONARY.
普遍适用性
The principle finds universal applicability in democratic societies.
该原则在民主社会中具有普遍适用性。