Chinese tongue twisters 绕口令 are a fun tool for improving one’s enunciation. It is especially helpful for you to practice Pinyin for Chinese beginners.
Chī pútáo bù tǔ pútáo píér, bù chī pútáo dǎo tǔ pútáo píér.
吃葡萄不吐葡萄皮儿，不吃葡萄倒吐葡萄皮儿。
One eat the grape without spitting out its skin; one does not eat the grape yet he spits out its skin.
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Māma qí mǎ, mǎ màn,māma mà mǎ.
妈妈骑马, 马慢, 妈妈骂马。
Mum rides on a horse, the horse walks too slow, so Mum curses it.