yào kāi fāpiào shí, tíqián zhǔnbèi gōngsī míngchēng, shuìhào, yóuxiāng hé dìngdān jīné

要开发票时，提前准备公司名称、税号、邮箱和订单金额。

When requesting an invoice, prepare the company name, tax ID, email, and order amount in advance.