我认为两种情况皆有可能：一方面，能够用对方的母语与其沟通当然是最好的，且在某些情况下你根本没有别的选择，例如在外国生活，你就必须掌握另一种语言。

On the one hand, being able to communicate with someone is his or her language is the optimal solution. And in some situations such as living in a new country, you simply don't have the choice.

youdao