2 sentences

1. 我记下了他的联系方式。

   wǒ jì xià le tā de lián​xì​fāng​shì.

   I wrote down his contact information.

   Source: OpenSubtitles

2. 研究助理随后离开了大楼，没有留下联系方式，也没有索要收据。

   yán​jiū zhù​lǐ suí​hòu lí kāi le dà​lóu, méi​yǒu liú xià lián​xì​fāng​shì, yě méi​yǒu suǒ​yào shōu​jù.

   The research assistant then left the building without leaving contact details or asking for a receipt.

   Source: CCMatrix