翻译：我们只有尽量多掌握一种语言背后的文化，才能更好的与当地人们进行跨文化的交流。

only if we had mastered ,the more,the better,the culture behind a language ,we would do beter in across-culture communicating with the locals.

我们只有尽量多掌握一种语言背后的文化，才能更好的与当地人们进行跨文化的交流。

Only if we are well informed about the culture which is behind a language, can we make better communication with the local people despite the differeces between each other.

嗯……意思大体相同，希望您能满意