Picture sound book for teenage children for learning Chinese words related to Earth

This is an epub picture sound book for teenage children. It is for learning the written Chinese characters, pronunciation and pinyin of the commonly-used Chinese words related to the topic of Earth. Each page in the book groups together a written Chinese word, its English translation, pinyin, sound clip and a picture which is carefully chosen to illustrate the word. The sound clip helps a learner pronounce the Chinese word correctly like a Chinese speaker. By repetitively looking at the word, its translation, pinyin or associated picture, and listening to the sound clip, a learner can memorize the Chinese word, pinyin and correct pronunciation quickly and naturally.