1、Chinese pinyin is a phonetic system used to transcribe Mandarin Chinese sounds into a Latin alphabet.
（汉语拼音是一种将汉语普通话的声音转写为拉丁字母的拼音系统。）

2、Learning pinyin is important for non-native speakers to correctly pronounce Chinese words.
（学习拼音对于非母语者来说是正确发音汉语单词的重要一步。）