3 sentences

1. 为何增添额外的复杂性？

   wèi​hé zēng​tiān é​wài de fù​zá​xìng?

   Why add more complexity?

   Source: CCMatrix

2. 让复杂变简单，并不意味忽略复杂性。

   ràng fù​zá biàn jiǎn​dān, bìng bù yì​wèi hū​lüè fù​zá​xìng.

   Making the complex simple does not mean ignoring complexity.

   Source: CCMatrix

3. 直到现在他才明白这一问题的全部复杂性。

   zhí​dào​xiàn​zài tā cái míng​bai zhè yī wèn​tí de quán​bù fù​zá​xìng.

   Only now did he understand the full complexity of the problem.

   Source: UM-Corpus: Education