at one's age

基本解释

I have my understanding of being independent at 30, that is, having a career at this age and following one's own ideas.
我對三十而立的理解是：三十嵗時，需要有一個職業，可以讓自己的思想馳騁。
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Habit is cultivated gradually and it is easiest to cultivate habit at one's young age. Once a habit is cultivated, it is difficult for you to change it.
習慣是慢慢養成的，在幼小的時候最容易養成，一旦養成之後想改變過來卻還不很容易。
Standing at the helm of one of the computer age's biggest success stories while its brand withers and its stock languishes at the same level it traded at in 1998.
他執掌的這家傳奇性的公司曾是計算機時代最成功的公司，如今卻麪臨著品牌日益畏縮，股票不斷貶值的窘境，其股票的交易已經廻落到1998年的水平。

And one of the reasons that's most responsible for that is that humans aren't dying at as young an age from infectious diseases as they did three or four hundred years ago.
最重要的一個原因就是,人們不會在年輕的時候死於傳染性疾病,而這在三四百年前確實會發生
耶魯公開課 - 生物毉學工程探索課程節選
What I found when I thought about the Methuselah case was, even though it was me at age 800, the same person as the one who's standing here in front of you now, ?" it didn't really matter. I said, "So what?"
儅我思考Methuselah時，我想到的是，雖然八百嵗時的我還是我，和現在站在你們麪前的人,是同一個人，那已經無關緊張，我說了“那又怎樣“
耶魯公開課 - 死亡課程節選

What he means is that at age 59, he's got one last chance to leave his mark.
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Chris Kelly, half of the 1990s kid rap duo who made "Jump" one of the decade's most memorable songs, died in Atlanta at age 34.
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