With my head in the clouds.

在云中有我的头。

Climb in the back with your head in the clouds.

你一头栽入云雾之中不断向上攀爬。

You have your head in the clouds. Only expert hikers can do that.

你是不是脑袋不太清楚？只有专业登山者才可能做的到。

The opposite kind of person is one who has his "head in the clouds."

与之相反的一种人就是“胡思乱想”的人。

She walks around all day with her head in the clouds. She must be in love.

她整天心不在焉地走来走去。她一定是恋爱了。