Chinese like to use this expression 不怕一万，只怕万一 bùpà yī wàn， zhǐpà wànyī to advise others that it is always wise to play safe.

However, literally speaking, all that mentioned in this expression are merely numbers: 一万 yī wàn and 万一 wànyī.  一万 yī wàn means ten thousands, but 万一 wànyī doesn’t mean “ten thousand ones”, it actually means “in case”!

based on the word meaning of this expression, you can comprehend it this way :

 

    We’re not afraid of ten thousands times it turns out OK, we’re only cautious about the one out of ten thousands times that it turns bad.

As a matter of fact,  不怕一万，只怕万一 bùpà yī wàn， zhǐpà wànyī can be simply translated as “Just in case.” as well.

 

This is a frequently used expression that you really should learn. Now let’s see how we can use it in our everyday conversations - two examples:

 

    bǎshǒu jī dài shàng， bùpà yī wàn， zhǐpà wànyī。

    把手机带上，不怕一万，只怕万一。

    Bring your cell phone with you, just in case.

 

    bùguǎn shíjiān yǒu duō jǐn， dōu yào àn guīchéng cāozuò， bùpà yī wàn， zhǐpà wànyī ma。

    不管时间有多紧，都要按规程操作，不怕一万，只怕万一嘛。

    No matter how tight the time is, we have to operarate by the procedure in order to prevent accident from happening.