池子 (chí zi) means “pond; bathhouse pool; dance floor of a ballroom; (old) stalls (front rows in a theater)”. It is an HSK 5 Chinese word in the HSK 3.0 vocabulary.
院子里有一个小池子。
Yuànzi lǐ yǒu yī gè xiǎo chízi.
There is a small pond in the yard.
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