要居安思危,有备无患.

We will have to be mindful of possible adversities and be prepared for the worst.

你该带把伞,有备无患.

You should take an umbrella just as a precaution.

我们要有备无患,以防不虞.

We must prepare for the unexpected.

有备无患.

Have two strings to your bow.

有备无患, 快收藏这个小东东吧.

Danger, a small collection of fast Wanton it.

就算是教士,身边也该备弓箭;有备无患.

A man of God is better far having his bows and arrows about him.

有备无患胸部疼痛，与膝关节的疼痛、腰痛等不同；

Unlike an achy knee or crabby lower back, chest pain isn't something to shrug off until tomorrow.

但是提前计划有备无患，难说政客们不会拼死一搏。

But it pays to plan ahead, just in case the politicians lose the last of their marbles.

买十包装的家庭号口香糖，你就可以有备无患了。

Buy gum in family-sized 10-packs so you're always prepared.

将自己整装起来，早早地准备好，有备无患，就是老子说的早服。

People equip and prepare themselves early to wait the coming opportunity, which is the forestallment mentioned by Laotse.