They developed a sense of inferiority about their country.

他们对自己的国家已渐渐产生了一种自卑感。

youdao

I found it difficult to shake off a sense of social inferiority.

我发现很难摆脱社会地位低下的自卑感。

《柯林斯英汉双解大词典》

I found it difficult to shake off a sense of social inferiority.

我发现很难摆脱社会地位低下的自卑感。

《柯林斯英汉双解大词典》