1. A runaway horse, pronounced tu 333 333 299ī m ǎ, is a Chinese idiom, which comes from Mao Dun's "Random Notes on Night Reading": "But because of the way of rambling, writing is often like a runaway horse, which is far from the topic.
2. "It is used to describe a person who is out of bondage or a thing that is out of control.
3. Be an object in a sentence.
