提示：点击例句中的单词，就可以看到词义解释

She is also keenly aware of youthful speech patterns .

同时她也敏锐地捕捉到年轻人的说话方式。

In free space , such heat could come only from a star-in this case , presumably , the youthful sun .

在自由的空间，这样的热量只能来自于星星既然这样的话，推测起来这个星星就是年轻的太阳。

His youthful activities did not suggest he would end up as a corporate high-flyer .

他青年活动并不意味着他将最终成为一个合作的野心家。

Want to keep your complexion smooth and youthful ?

想要保持你的皮肤平滑和年轻吗？

Youthful continence shows up in all manner of social indicators .

各种社会指标都显示了年轻人身上的克制。