❶頭, 首, 顔
hit him on the head
hit him on the head
彼の頭を打つ
⦣ hit A （人） on the B （部分）は「AのBを打つ」.
stand on one's head
stand on one's head
He had a black cap on his head.
He had a black cap on his head.
彼は（頭に）黒い帽子ぼうしをかぶっていた.
He is taller than me by a head.
He is taller than me by a head.
彼は私より首から上だけ背が高い[私は彼の肩かたまでしかない].
⦣ by は「～だけ」.
Don't put your head out of the window.
Don't put your head out of the window.
窓から顔を出しちゃだめよ.
⦣ こういう場合の「顔」を ×face としないこと.
