If you know you are going to be charging for your product, start by validating if anyone will pay first.

如果你准备在你产品上收费，先确定是否有人愿意先为此付钱。

youdao

If you know you are going to be charging for your product, start by validating if anyone will pay first.

如果你准备在你产品上收费，先确定是否有人愿意先为此付钱。

youdao