Word: 怎么办

假使你遇到这种问题的话，你怎么办？

Jiǎshǐ nǐ yùdào zhèzhǒng wèntí dehuà, nǐ zěnmebàn?

What if you encounter this kind of problem - then what will you do?

我们弄丢了的话，怎么办？

Wǒmen nòngdiū le dehuà, zěnmebàn?

If we've lost it, what'll we do?

我去问她了，她也不知道怎么办。

Wǒ qù wèn tā le, tā yě bù zhīdào zěnmebàn.

I went to ask her, and she didn't know what to do either.