He wanted to affiliate with a U.S. firm because he needed expert advice in legal affairs.

他想成为一家美国公司的会员，因为他需要法律事务方面的专家意见。

Here are some findings and expert advice.

以下是一些发现和专业建议。

Expertise: Expert advice or opinion.

专家鉴定：专家的意见或观点。

Could you give me your expert advice?

你可以给我一些专业意见吗？

Could you give me your expert advice?

能给我点专业意见吗？