挖鼻屎用英语怎么说

挖鼻屎的英文表达是 "pick one's nose"。

这个说法源自于英语中的动词 "pick" 和名词 "nose"。"Pick" 的意思是用手指或工具挑选或拾取，而 "nose" 指的是鼻子。因此 "pick one's nose" 的意思就是用手指在鼻子里挑选或拾取鼻屎。

例句：

"Please don't pick your nose in public, it's impolite." (请不要在公共场合挖鼻屎，这不礼貌。)
"I saw him picking his nose while he was waiting for the bus." (我看到他在等公交车时挖鼻屎。)
"She always has a tissue with her to wipe her nose after she picks it." (她总是带着纸巾，在挖完鼻屎后擦掉鼻涕。)