4 sentences

1. 这些门易于维护。

   zhè​xiē mén yì​yú wéi​hù.

   These doors are easy to maintain.

   Source: CCMatrix

2. 好的设计使产品易于理解。

   hǎo​de shè​jì shǐ chǎn​pǐn yì​yú lǐ​jiě.

   Good design makes a product easy to understand.

   Source: CCMatrix

3. 设计是让某些东西易于使用、或易于理解。

   shè​jì shì ràng mǒu​xiē dōng​xi yì​yú shǐ​yòng, huò yì​yú lǐ​jiě.

   Design is about making something easy to use or easy to understand.

   Source: CCMatrix

4. 通常人们会选择一个易于记忆的数字，但不是太明显。

   tōng​cháng rén​men huì xuǎn​zé yī​ge yì​yú jì​yì de shù​zì, dàn bù​shì tài míng​xiǎn.

   Usually people choose a number that's easy to remember, but not too obvious.

   Source: CCMatrix