Meaning of kuài:
块
lump; chunk; piece
Wǒ gěi nǐ yī kuài dàngāo.
我给你一块蛋糕。
I give you a piece of cake.
Wǒ mǎi le yī kuài dàngāo.
我买了一块蛋糕。
I bought a piece of cake.
Tā qiē xià yí kuài dàngāo.
他切下一块蛋糕。
He cut off a piece of cake.
Zhuō shàng fàng zhe yí kuài xiāngzào.
桌上放着一块香皂。
There is a bar of soap on the table.
classifier for pieces of cloth, cake, soap etc; (coll.) classifier for money and currency units
Wǒ mǎi le yī kuài dàngāo.
我买了一块蛋糕。
I bought a piece of cake.
Wǒ gěi nǐ yī kuài dàngāo.
我给你一块蛋糕。
I give you a piece of cake.
Zhuō shàng fàng zhe yí kuài xiāngzào.
桌上放着一块香皂。
There is a bar of soap on the table.
Zhè jiàn yīfu zhǐ yào wǔ kuài qián.
这件衣服只要五块钱。
This piece of clothing costs only five kuai.
Wǒ gěi nǐ yī kuài dàngāo.
我给你一块蛋糕。
I give you a piece of cake.
Wǒ mǎi le yī kuài dàngāo.
我买了一块蛋糕。
I bought a piece of cake.
Tā qiē xià yí kuài dàngāo.
他切下一块蛋糕。
He cut off a piece of cake.

