Complex sentence: They also cite her poor command of the English language (she is most well-versed in Cantonese and Mandarin); this has been said to be attributed to having been brought up in a hometown where the majority only speak the local dialect.
Split into simpler sentences: They also cite her poor command of the English language (she is most well-versed in Cantonese and Mandarin). Although this have been to said to be attributed to having been brought up in her hometown where the majority only speak the local dialect.