hot potato 烫手山芋（喻指棘手的问题）
They dropped it like a hot potato.
in hot water 遇到麻烦
The 'Nutter with the Putter' was in hot water before Liverpool's clash with Barcelona after allegedly attacking team-mate John Arne Riise with a golf club.
blow hot and cold 反复无常，摇摆不定
Some people can make up their minds right away, but others blow hot and cold.
hot and bothered 烦躁不安
Night comes hot and bothered.
full of hot air 夸夸其谈
They were full of wind or full of hot air.
have the hots for 迷恋某人
Our English teacher seems to have the hots for Mary.
hot on the heels 紧随其后
But now, hot on the heels of acceptance, comes cheer.
in the hot seat 如坐针毡
When testifies before Congress， he will be in the hot seat.