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youthful + noun
用于名词前，表示充满青春活力的特征。
She still has a youthful appearance.
她仍有年轻的外表。
年轻的；显得年轻的
先理解核心含义，再看它在真实句子里的用法。
年轻的；显得年轻的
Young or seeming young.
She still has a youthful appearance.
她仍有年轻的外表。
年轻的；显得年轻的。
Young or seeming young.
富有青春气息的；充满活力且清新
suggestive of youth; vigorous and fresh
具有年轻人特点的。
Characteristic of young people.
Her youthful energy made her popular with the team.
她充满青春活力的干劲使她在团队中很受欢迎。
Despite his age, he had a youthful appearance.
尽管上了年纪，他外表依然显得年轻。
The design has a youthful style that appeals to teenagers.
这款设计具有青春风格，很受青少年欢迎。
用于名词前，表示充满青春活力的特征。
She still has a youthful appearance.
她仍有年轻的外表。
作表语，描述某人的状态或特质。
His attitude is very youthful.
他的态度非常年轻。
比较级形式，表示更具青春气息。
This design looks more youthful than the old one.
这个设计比旧的那个看起来更年轻。
Not this
He has a youthful brother.
Use this
He has a young brother.
'youthful' 表示‘朝气蓬勃的’、‘青春的’，常用于描述外观或精神状态，而非实际年龄。表示年龄小时应用 'young'。
Not this
The government should care for the youthful.
Use this
The government should care for the youth.
'youthful' 是形容词，不能直接作名词使用。表示‘年轻人’这个群体时，应用名词 'youth'。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
年轻的外表
She maintains a youthful appearance through a healthy lifestyle.
她通过健康的生活方式保持着年轻的外表。
青春的活力
The team played with youthful energy and enthusiasm.
这支队伍以青春的活力和热情进行比赛。
年轻的热忱
His youthful enthusiasm inspired everyone around him.
他年轻的热忱激励了周围的每一个人。
年轻的心态
Even in his 80s, he has a youthful spirit and loves adventure.
即使80多岁了，他仍然保持年轻的心态，热爱冒险。
年轻时的轻率行为
He regretted his youthful indiscretions, but they were part of growing up.
他后悔年轻时的不检点行为，但这些是成长的一部分。
青春活力
The team played with youthful exuberance, winning the crowd over.
这支队伍以青春活力打动了观众。
天真无邪
Her youthful innocence was a stark contrast to the cynicism around her.
她的天真无邪与她周围的愤世嫉俗形成了鲜明对比。
Use youthful naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
youth（青春）+ ful（充满）→ 充满青春活力的
语域：neutral 常见场景：描述外貌、描述性格 通常用于正面描述，比较常见于文学或日常赞美，较为中性。
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.