Query the pinyin bear phonetic symbols of English words, select Pinyin bear phonetic symbols of four tones, and the phonetic difficulty level. Pinyin symbols that you can understand, can let you know whether the pronunciation is correct, greatly improve the accuracy and efficiency of sound memory!!! The APP function for this app is as follows: ● Query the pinyin bear phonetic symbols of English words and phrases (Taiwan phonetic version and mainland Chinese phonetic version) ● The query resul