3 sentences

1. 这项成就离不开大家的共同努力。

   zhè xiàng chéng​jiù lí​bu​kāi dà​jiā de gòng​tóng nǔ​lì.

   This achievement is inseparable from everyone's collective efforts.

   Source: Dong Chinese Dictionary

2. 冰冻三尺非一日之寒，他的成功离不开长期的苦练。

   bīng​dòng​sān​chǐ fēi yī rì zhī hán, tā de chéng​gōng lí​bu​kāi cháng​qī de kǔ​liàn.

   Rome wasn't built in a day; his success is inseparable from long-term hard practice.

   Source: Dong Chinese Dictionary

3. 鱼儿离不开水，就像孩子离不开母亲一样。

   yú r lí​bu​kāi shuǐ, jiù xiàng hái​zi lí bù kāi mǔ​qīn yī​yàng.

   Fish cannot live without water, just as a child cannot do without its mother.

   Source: Dong Chinese Dictionary