2 sentences

1. 他对我的态度非常冷淡。

   tā duì wǒ de tài​du fēi​cháng lěng​dàn.

   His attitude towards me was very cold.

   Source: Dong Chinese Dictionary

2. 大家对这个新方案的反应十分冷淡，没人支持。

   dà​jiā duì zhè​ge xīn fāng'àn de fǎn​yìng shí​fēn lěng​dàn, méi rén zhī​chí.

   Everyone's reaction to the new proposal was very lukewarm, and no one supported it.

   Source: Dong Chinese Dictionary