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APP REVIEW: Pinyin Trainer
Tools: Chinese Pinyin Trainer (July 16, 2017)
What is the Google Pinyin app for?
5. Speedy Mandarin How to learn write and pinyin
Great tool to learn to read Chinese without pinyin
Don't Memorize Chinese Tones - Train Your Ears Instead!
Pinyin Puzzle is now in the App Store!
How to type Chinese words on your Android by Google Zhuyin Input