Maybe the secret to Lenny's youthfulness is that he inherited a diverse set of immune genes.

也许莱尼年轻的秘密在于他继承了一套多样化的免疫基因。

Especially because there was kind of this idea that true beauty or youthfulness didn't last very long.

真正的美丽或年轻不会持续很长时间。

Instead, they emphasized a certain youthfulness in her that transcended age.

相反，他强调她身上有一种超越年龄的青春气息。

" I must say again that I heartily admire your gallantry and youthfulness" .

“必须再说一，衷地钦佩你的勇敢和青春”。

She had a certain air of simplicity and youthfulness in her deportment.

她的举止有一种朴素和年轻的气息。

Naoko's youthfulness struck me in a new way.

直子的青春气息新的方式打动了。

His bushy light-brown curls, as well as his youthfulness, identified him at once with Celia's apparition.

他浓密的浅棕色卷发， 及他的青春， 立刻把他认作是西莉亚的幻影。

He stared, he pondered, he suddenly laughed, and in that laughter found a youthfulness he had never known in his solemn youth.

他凝视，他沉思，他突然笑了，在这笑声中，他找到了他严肃的青春中从未有过的青春。

It gives us a better understanding of the larger obsession with youthfulness and its subsequent regressive behavior as a sort of reflex against the fear of death, the fear of time running out.

它让好地理解了对年轻的痴迷及随之而来的倒退行为，这是对死亡的恐惧的一种投射，对时间流逝的恐惧。

'I sincerely trust that your wife'—but observing the youthfulness of Swithin, he withdrew the word suggested by the manner of Swithin towards Lady Constantine—'I trust the young lady was not seriously cut'?

“真诚地相信你的妻子” ——但看到斯威辛还很年轻， 他收回了斯威辛对君士坦丁夫人的态度暗示的话——“相信这位年轻女士没有受重伤” ？

It would never do to appear sedate and elderly before Melanie's sweet youthfulness. The lavender barred muslin was beautiful with those wide insets of lace and net about the hem, but it had never suited her type.

可千万不能在媚兰那娇嫩的姿色前显得稳重和老气呀！那件淡紫色的条纹细棉面的，配上宽宽的镶边和网缘，倒是十分漂亮，可是这对她的身段很不合适。

The air of completeness and superiority with which she walked at my side, and the air of youthfulness and submission with which I walked at hers, made a contrast that I strongly felt.

她走在身边时的完全和优越感，与走在她身边时的青春和顺从，形成了强烈的对比。

Less repose was visible in his face than in Eustacia's, but the same luminous youthfulness overspread it, and the least sympathetic observer would have felt at sight of him now that he was born for a higher destiny than this.

他的脸看上去不像游苔莎那样安详，不过同样焕发着年轻人的光彩，即使是最没有同情心的旁观者现在看到他，也会觉得他不应该有这样的结局。

The blood that ran so close to her fair skin might have been a preserving fluid rather than a ravaging element;yet her look of indestructible youthfulness made her seem neither hard nor dull, but only primitive and pure.

紧贴着她白皙肌肤的血液， 与其说是破坏性的元素， 倒不如说是一种保存液； 然而，她那种坚不可摧的青春容貌， 却让她看起来既不冷酷也不呆板，而是原始而纯洁。