When fear knocks at the door of your mind, let faith in God and all things good open the door.

当恐惧敲着你意识的那道门时，让你对上帝和所有美好的事物的信仰去开门。

youdao

The power of him saying this knocks them all over, and they get up and do it again,and they all fall over again.

光他说出这句话的力量，就让他们都倒下了，然后他们爬起来，又问了一遍，然后又倒下。

youdao

If you provided a wrong sequence of knocks (or no knocks at all), you would receive a "Connection timed out" message, and the SSH port would remain completely closed with no sign of its existence.

如果提供了错误的敲门序列(或根本没有敲门)，会收到“Connection timed out”消息，SSH端口仍然完全关闭，看不出它是存在的。

youdao

Those Australian victories somehow seem to lead to a string of injuries or boredom that knocks Williams, one of the all-time greats, off her game.

WSJ: Why Everyone Wants Serena to Win

My advice to all of them has been that when opportunity knocks, eagerly swing the door wide open.

WHITEHOUSE: Every Opportunity

If a tornado knocks out a shopping center, a handful of grocery stores, all the hardware stores, lumber yards, and a handful of construction companies, we simply have less stuff to go around.

FORBES: Price Gouging Laws Hurt Storm Victims