Complex sentence: Hearing CODAs frequently feel caught between two cultures in a situation similar to that of many second-generation immigrants in that their parents frequently struggle to communicate in the majority (spoken) language, but CODAs are usually fluent bilinguals.
Split into simpler sentences: Hearing CODAs frequently feel caught between two cultures, in a situation similar to that of many second-generation immigrants. As with second-generation immigrants, their parents frequently struggle to communicate in the majority (spoken) language, while CODAs are usually fluent bilinguals.