3 sentences for 功夫 (gōng​fu — effort)

1. 只要肯下功夫，什么事都能办成。

   zhǐ​yào kěn xià gōng​fu, shén​me shì dōu néng bàn​chéng.

   As long as you are willing to put in the effort, you can accomplish anything.

   Source: Dong Chinese Dictionary

2. 天黑得真快，一会儿功夫就看不清路了。

   tiān​hēi de zhēn kuài, yī​huì​r gōng​fu jiù kàn bù qīng lù le.

   It's getting dark so fast; I can't even see the road anymore.

   Source: Dong Chinese Dictionary

3. 这孩子瘦得像个猴，一眨眼的功夫就灵活地爬到了房顶上。

   zhè hái​zi shòu de xiàng gè hóu, yī​zhǎ​yǎn de gōng​fu jiù líng​huó de pá dào le fáng​dǐng shàng.

   The child is as thin as a monkey and nimbly climbed onto the roof in the blink of an eye.

   Source: Dong Chinese Dictionary