在文档交付开发人员之前，我们要反复检验产品的可用性、合意性和可行性。

We need to test (validate) usability, desirability and feasibility -before proceeding to engineering.

youdao

在文档交付开发人员之前，我们要反复检验产品的可用性、合意性和可行性。

We need to test (validate) usability, desirability and feasibility - before proceeding to engineering.

youdao

即使我们的父母告诉我们，在行动前要仔细思考，我们事实上一旦有了想法就会采取微小的行动去检验它们的可行性。

Even though our parents told us to always think before we act, we should actually be taking micro-actions as soon as we have ideas to test their viability.

youdao