6 sentences for 劲 (jìn — strength)

1. 他费了不少劲，爬上了那棵树。

   tā fèi le bù​shǎo jìn, pá​shàng le nà kē shù.

   With great effort he climbed up the tree.

   Source: Tatoeba

2. 他使了很大的劲才把石头搬开。

   tā shǐ le hěn dà de jìn cái bǎ shí​tou bān​kāi.

   He put in a lot of effort to move the rock.

   Source: Dong Chinese Dictionary

3. 费了老大劲，高低把这事办成了。

   fèi le lǎo​dà jìn, gāo​dī bǎ zhè shì bàn​chéng le.

   After a lot of effort, we finally managed to get it done.

   Source: Dong Chinese Dictionary

4. 这是我费了好大劲才换来的机会。

   zhè shì wǒ fèi le hǎo dà jìn cái huàn​lái de jī​huì.

   This is an opportunity I got after putting in a lot of effort.

   Source: Dong Chinese Dictionary

5. 他跑得很快，我费了好大劲才赶上他。

   tā pǎo de hěn kuài, wǒ fèi le hǎo dà jìn cái gǎn​shàng tā.

   He ran so fast that I had a hard time catching up with him.

   Source: Dong Chinese Dictionary

6. 他努着劲儿，好不容易才把那个生锈的螺丝拧开。

   tā nǔ zhe jìn r, hǎo​bù​róng​yì cái bǎ nà​ge shēng​xiù de luó​sī nǐng​kāi.

   He strained with all his might and finally managed to unscrew that rusty screw.

   Source: Dong Chinese Dictionary