The police remind residents to remain vigilant eternally.

公安提醒居民永远保持警惕。

I will eternally remember your kindness to me.

我会永远记得您给予我的恩惠。

My neighbor was complaining eternally.

我的邻居似乎永远在抱怨。

I'll be eternally grateful to you for this.

我将为此永远感激你。

She is eternally grateful to her family for their support.

她因家人的支持对他们永存感激之心。

Snakes are symbols of renewed life and fertility in the East; because they shed their skins so they seem to be eternally young.

在东方，蛇一般都是新生命和多产的象征；因为蛇的蜕皮似乎能使它永远年轻。

It's eternally an odd number.

它永远是个奇数。

Eternally - that's the word, Sir.

是永远——这才像话呢，先生。