Dictionary / Vocabulary / 頭が下がる
あたまがさがる
to admire greatly; to salute (in admiration); to take one's hat off to
Also written 頭がさがる
彼女の努力には頭が下がる。
I take my hat off to her for her effort.
彼の努力に頭が下がる。
I take my hat off to him for his hard work.
彼の努力には、頭が下がるよ。
I've got to hand it to him. He works hard.