万一

duō dài xiē yī fu ba yǐ fáng wàn yī

多带些衣服吧，以防万一。

Bring more clothes just in case.

wèi fáng wàn yī wǒ hái gěi tā mǎi le yī fèn rén shòu bǎo xiǎn

为防万一，我还给她买了一份人寿保险。

I have also taken out a life insurance policy on her just in case.

dài bǎ sǎn ba yǐ bèi wàn yī

带把伞吧，以备万一。

Take an umbrella just in case.

fēi bǐ mò suǒ néng xíng róng qí wàn yī

非笔墨所能形容其万一。

It is completely beyond description.

sǔn shī bù guò wàn yī

损失不过万一。

The loss is just one thousand.

wàn yī xià yǔ yě bù yào jǐn wǒ dài le sǎn

万一下雨也不要紧，我带了伞。

I've brought along an umbrella, so it doesn't matter if it rains.

wàn yī wǒ méi huí lái qǐng zhào gù wǒ de hái zi men

万一我没回来，请照顾我的孩子们。

Just in case I'm not back, please take care of my children.

wàn yī yǒu jǐn jí qíng kuàng qǐng àn lán sè àn niǔ yǐ qiē duàn diàn yuán

万一有紧急情况，请按蓝色按钮以切断电源。

Should there be any emergency, please press the blue button to cut off the electricity.