我外语不好证明我爱国
[wŏ wài yŭ bù hăo zhèng míng wŏ ài guó]
Literally translating to 'my poor foreign language skills prove my patriotism.' This has an element of irony and is a playful expression implying that focusing on domestic affairs over international culture showcases one's loyalty to their homeland. In practice, it may reflect national pride more than literal language ability and does not seriously suggest that loving one's country excludes learning other languages.