3 sentences

1. 汽车制造商有几十年开发和提高产品安全性的经验。

   qì​chē zhì​zào​shāng yǒu jǐ shí nián kāi​fā hé tí gāo chǎn​pǐn ān​quán​xìng de jīng​yàn.

   Automakers have decades of experience developing and improving the safety of their products.

   Source: CCMatrix

2. 当父母为孩子选择游乐场时，首先要判断的是安全性。

   dāng fù​mǔ wèi hái​zi xuǎn​zé yóu​lè​chǎng shí, shǒu​xiān yào pàn​duàn de shì ān​quán​xìng.

   When parents choose a playground for their children, the first thing to judge is safety.

   Source: CCMatrix

3. 我感觉到她可能在为她的关系寻求某种永久性或安全性。

   wǒ gǎn​jué dào tā kě​néng zài wèi tā de guān​xi xún​qiú mǒu​zhǒng yǒng​jiǔ​xìng huò ān​quán​xìng.

   I sense that she might be seeking some sort of permanence or security for her relationship.

   Source: CCMatrix