词汇 "not know your ass from your elbow" 在中文的含义

"not know your ass from your elbow" 在英语中是什么意思?与 Lingoland 一起探索这个词的含义、发音及具体用法

not know your ass from your elbow

US /nɑt noʊ jʊər æs frəm jʊər ˈɛl.boʊ/
UK /nɑt noʊ jʊər æs frəm jʊər ˈɛl.boʊ/
"not know your ass from your elbow" picture

成语

1.

一窍不通, 笨手笨脚

to be very stupid or ignorant; to lack basic knowledge or common sense

示例:
He's so incompetent, he doesn't know his ass from his elbow.
他太无能了,简直一窍不通
Don't ask him for help; he doesn't know his ass from his elbow when it comes to computers.
别向他求助;他对电脑简直一窍不通
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