"come into one's own"是一个常用的英语短语，核心含义是“（人或物）充分发挥潜力、展现价值；获得应有的认可或地位”，强调从“未被重视/未展现实力”到“真正发挥作用/被认可”的转变。
该短语可以描述两种场景：
1、 人：某人的才能、优势终于得到施展或认可（之前可能被埋没、低估）；
2、 物：某事物的价值、用途终于被发掘或凸显（之前可能被忽视、闲置）。
通常是人（sb. comes into one's own）或物（sth. comes into its own）。
所有格（one's/its）需与主语一致（如主语是"she"，则用"her"；主语是"the old car"，则用"its"）。
可接介词短语（如"in..."）说明“在某领域/情境下”发挥价值：
e.g. She came into her own in the world of fashion after launching her first collection.（推出首个系列后，她在时尚界崭露头角。）
可接时间/情境状语，强调“在某个关键时刻”凸显价值：
e.g. The team's captain came into his own during the final match when he scored the winning goal.（队长在决赛中打入制胜球，真正展现了自己的实力。）
一般过去时（came into one's own）：描述过去发生的“发挥潜力/获得认可”的事件；
现在完成时（has/have come into one's own）：强调“至今已获得认可”的结果；
将来时（will come into one's own）：预测未来会“发挥价值”。
After years of being a supporting actor, he finally came into his own as a leading man in this movie.（做了多年配角后，他终于在这部电影中作为主角崭露头角。）
The young designer has come into her own since she started focusing on sustainable fashion.（这位年轻设计师专注于可持续时尚后，终于获得了认可。）
This vintage camera came into its own when I used it to shoot the documentary—its grainy effect added so much character.（我用这台复古相机拍纪录片时，它的价值终于体现出来了——颗粒感的效果增添了很多质感。）
Board games have come into their own again during the pandemic, as people look for offline activities.（疫情期间，桌面游戏再次流行起来，因为人们寻求线下活动。）
come into one's element：更强调“处于适合自己的环境，如鱼得水”（侧重“状态舒适”）；
e.g. She's shy at parties, but she comes into her element when talking about art.（她在派对上很害羞，但聊艺术时就如鱼得水。）
come into one's own：更强调“潜力被释放、价值被认可”（侧重“结果性的突破”）。
总之，"come into one's own"是一个生动的表达，用来描述“从平凡到发光”的转变，无论是人还是物，都能准确传达“终于发挥应有价值”的含义～