3 sentences

1. 懒惰不是借口。

   lǎn​duò bù shì jiè​kǒu.

   Laziness is no excuse.

   Source: OpenSubtitles

2. 氦气是一种比空气轻的惰性气体。

   hài​qì shì yī zhǒng bǐ kōng​qì qīng de duò​xìng qì​tǐ.

   Helium is an inert gas that is lighter than air.

   Source: OpenSubtitles

3. 这种懒惰的工作态度会让你的职业生涯受阻。

   zhè zhǒng lǎn​duò de gōng​zuò tài​du huì ràng nǐ de zhí​yè shēng​yá shòu​zǔ.

   This lazy work attitude will hinder your career progress.

   Source: Dong Chinese Dictionary