Number + 元
元 (yuán) is the basic monetary unit of Chinese currency (RMB) and is also used as a general word for "dollar" or "yuan." It appears after a number to indicate a price or amount. For example, 五元 means "five yuan."
这杯咖啡三十五元,你要买吗?
zhè bēi kāfēi sānshíwǔ yuán, nǐ yào mǎi ma?
This cup of coffee is thirty-five yuan, do you want to buy it?
他每个月花两千元租房子。
tā měi gè yuè huā liǎngqiān yuán zū fángzi.
He spends two thousand yuan a month on rent.
这本书只要二十元,很便宜。
zhè běn shū zhǐyào èrshí yuán, hěn piányi.
This book is only twenty yuan, very cheap.