不冷不热

bù lěng bù rè de chá

不冷不热的茶

tepid tea

bù lěng bù rè de tiān

不冷不热的天

in-between weather

zhè lǐ de tiān qì yī nián sì jì dōu bù lěng bù rè

这里的天气一年四季都不冷不热。

We have temperate weather here all year round.

tā duì tóng shì yī zhí bù lěng bù rè de

他对同事一直不冷不热的。

He always assumes a lukewarm attitude towards his colleagues.

gōng zhòng duì gāi jiàn yì de fǎn yìng bù lěng bù rè

公众对该建议的反应不冷不热。

Public response to the proposal was lukewarm.

tā jué de wǒ de wèn hòu bù lěng bù rè

他觉得我的问候不冷不热。

He thought my greeting restrained.