朵喵喵ljh
是说气候还是说人际关系呢？那么， 他对人总是忽冷忽热的。His attitude towards others is always changing或者有短语：be neither close nor distant; maintain a lukewarm relationship; keep somebody at arm's length（之前加上I feel）
紫霞大官人
忽冷忽热有雾霾英文:1)Dramaticalchangeinweatherleadstohaze.2)Hazeresultsfromsuddenchangebetweenhotandcoldweather.
小宝cute
sometimes hot and sometimes cold; blow hot and cold in turn; by fits and stars; Fever alternates with chills 均是。人际关系：(interpersonal) relationship
