Youth is the smile of the future in the presence of an unknown quantity, which is itself.

青春就是未来在向一个陌生人微笑，而这陌生人就是自己。

youdao

You should try not to worry too much about the presence of unknown words, and you should also practise guessing meaning from context.

你们不必过于担心出现生词，而且你们要练习通过上下文猜测词义。

youdao

You should try not to worry too much about the presence of unknown words, and you should also practise guessing meaning from context .

你们不必过于担心出现生词，而且你们要练习通过上下文猜测词义。

youdao

This new appellation, just over the border from Sonoma, is still largely unknown, but with a big Jackson Family presence it may not be for long.

WSJ: From Grief to Growth at Jackson Family Wines

His commanding physical presence, rugged good looks and ability to display charm and ruthlessness made the unknown actor an international star.

BBC: The many faces of Bond