Complex sentence: At the acrolectal level, the merged vowel phonemes are distinguished to some extent, and for some speakers elements from American English are introduced, such as pre-consonantal (r) (pronouncing the "r" in bird, port, etc.).
Split into simpler sentences: At the acrolectal level, the merged vowel phonemes are distinguished to some extent. For some speakers, elements from American English are introduced, such as pre-consonantal (r) (pronouncing the "r" in bird, port, etc.).