world-class + noun
She is a world-class athlete.
她是一位世界级的运动员。
世界级的；世界一流的；顶尖的
世界级的,达到世界一流水平的。；排名高于所有其他；世界级的；[经] 世界第一流水准的
Among the best in the world; of the highest standard.
世界级的,达到世界一流水平的。
Of a standard that ranks among the best in the world.
排名高于所有其他
ranking above all others
The city is known for its world-class museums and galleries.
这座城市以其世界级的博物馆和画廊而闻名。
用法提示：world-class 是形容词，表示‘世界一流的’，修饰名词 museums and galleries。
She received world-class training at the national sports academy.
她在国家体育学院接受了世界一流的训练。
用法提示：world-class 作定语，强调训练水平达到世界顶尖标准。
Our company aims to provide world-class customer service.
我们公司致力于提供世界一流的客户服务。
用法提示：world-class 修饰 service，说明服务水准处于世界顶级。
She is a world-class athlete.
她是一位世界级的运动员。
The hotel's service is world-class.
这家酒店的服务是世界级的。
in后接表示领域的名词短语。
The company is world-class in innovation.
这家公司在创新方面是世界级的。
可与 world-class 互换，但更强调等级分类。
与 world-class 意思相近，但更常用于形容服务或产品。
侧重指群体中顶尖的少数，但作为形容词时与 world-class 可替换。
非正式用语，与 world-class 同义，但口语中更常用。
正式用语，强调突出地位，与 world-class 替换时需注意语境。
grammar · medium
易错句子She is a world class musician.
正确表达She is a world-class musician.
复合形容词在名词前作定语时需加连字符，中文中无此习惯，容易遗漏。
grammar · medium
易错句子He is a world-class.
正确表达He is world-class.
“world-class”是形容词，不能用作可数名词，前面不应加冠词“a”。
“first-class”常指具体服务或产品的最高等级（如头等舱、一等邮件），而“world-class”强调达到全球顶尖水准。
“top-notch”是非正式用语，形容极好的，但不如“world-class”正式且常用于行业标准。
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