tongue
单词辨析：
普通用词，常指某一国家或地区的语言或文字，也可指某种类型的语言。
literary/poetic language
文学/诗歌语言
legal/medical language
法律/医学术语
Chinese is my native language.
汉语是我的母语。
What languages can you speak?
你会说什么语言？
尤指外语。
I'd like to visit Germany, but I don't speak the lingo.
我想去德国游览，但我不会说德语。
If you live abroad, it helps to know the local lingo.
住在国外，学一点当地的语言自有好处。
指口语或正式的讲话，作后者解时常后接介词 on/about。
Most people have a smaller vocabulary in speech than in writing.
多数人口语的词汇量比书面语少。
She gave the keynote speech.
她作了主题发言。
指某种语言或方言。
French is her mother tongue.
法语是她的母语。
Those articles were written in tongues that I could not read.
那些文章是用我看不懂的方言写的。
相关例句：
Douglas held his tongue, preferring not to speak out on a politically sensitive issue.
道格拉斯沉默不语，不愿谈论政治敏感问题。
Use a toothbrush on your tongue as well, and rinse your mouth frequently.
舌头也要用牙刷清洁，并且经常漱口。
Don't put out your tongue at me, you cheeky girl!
不要向我伸舌头，你这个没规矩的丫头！
The wine had loosened his tongue.
酒一下肚，他便打开了话匣。
A sarcastic remark was on the tip of her tongue.
挖苦的话到了她嘴边却没说出来。
I have his name on the tip of my tongue.
我几乎想起他的名字。