1.lose one’s head
It is important not to lose your head.
I really lost my head last night
That girl is so beautiful! I just lost my head for a minute.
He lost his head over that woman.
2.give sb sb’s head让某人随心所欲，自由发挥
He recognised ability and gave people their heads.
3.have one’s head in the clouds
He must have had his head in the clouds.
A good artist should have his head in the clouds sometimes, but his feet always on the ground.
He is head over heels in love with that girl.
5.keep/get one’s head down
Just play it safe, cover your ass, keep your head down.
6. It never entered one’s head that从句
It never entered my head that she would tell him about me.
The thought never entered my head.
7. head office总部，总公司
The company relocated its head office to Stanford.
Their head office is in New York.
I don’t know what head office will think about this proposal.
Bonus notices were issued each year from head office to local agents
Telephone their head office for more details.
Managers at their factory in Birmingham hold a two-hour teleconference with head office in Stuttgart every day.