The children of immigrants tend to be bilingual and proficient in English, "by the third generation, the original language is lost in the majority of immigrant families".

移民的孩子往往会说两种语言，而且精通英语，“到了第三代，大多数移民家庭都丧失了原来的语言。”

youdao

We got lost when traveled in Peru. To complicate matters further, we cannot speak the local language.

我们在秘鲁旅行时迷路了，使问题更复杂的是，我们不会说当地的语言。

youdao

But that knowledge isn't lost because the language is lost.

但这些知识之所以会丢失并不是因为语言丢失了。

youdao

But even near the end, when she'd lost command of language, she'd mouth the words to "Dayenu" with a smile on her face.

WSJ: Passover Challenged

In other words, every foreign language film nominated for both Best Picture and Best Foreign Language Film lost the first award but won the second.

FORBES: Ten Facts You Should Know About The Oscars

There is no harm in declaring English the official language, but there is immense damage and lost opportunity if it is the only language.

FORBES: Language Learning Helps Businesses Compete Globally