"He must go have tea" 或 "He must go for tea" 表示他必须去喝茶。

这个表达方式来源于英语中"go for"的意思,即"去(做某事)"。在这种用法中,"go"是动词,"for"是介词。"Tea"是目的地,表示他要去喝茶。

例句:

"I'm really thirsty. I think I'll go for a cup of tea."(我真的很渴。我想去喝杯茶。)
"Do you want to come with me to go for tea at the new café down the street?"(你想不想和我一起去街上新开的咖啡馆喝茶?)
"I'm feepng a bit stressed out. I think I need to take a break and go for a walk to get some fresh air and maybe stop for a cup of tea."(我有点紧张。我想我需要休息一下,出去散步让自己呼吸新鲜空气,或者停下来喝杯茶。)