跳到主要内容
inoh

know one's ass from a hole in the ground

/nəʊ wʌnz æs fɹəm eː hɒl ən ðə ɡɹaʊnd/

have basic understanding or competence

“One must know one's ass from a hole in the ground.”
添加到 My Deck
know one's ass from a hole in the ground 的插图:have basic understanding or competence