英语翻译Mary did not understand such sentences as “She is bule t

英语翻译
Mary did not understand such sentences as “She is bule today.”“He has a green thumb.”“He has told a little white lie.”And she went her teacher for help.
Mary：Mrs.smith,there is a colour in each of these sentences.What do they mean?
Mrs.Smith：In everyday english,Mary,bule sometimes means sad.Yellow...afraid.A person with a green thumb grows plants well.And a white lie is not a bad one.
Mary：Would you give me ann exanple for“a white lie”?
Mrs.Smith：Certainly.

玛丽对一些句子不太理解例如：她今天BLUE（不开心）,他有green thumb（特殊园艺才能）,他说了一个WHITE LIE（小谎话）之类.于是她去找老师寻求帮助.
玛丽说：史密斯太太,在这些句子里的颜色是什么意思呢?
史密斯：玛丽,在日常英语中蓝色指忧伤,不开心.黄色表示害怕.而一个有绿色拇指的人表示他很会种植植物.白色的谎言呢,就是一个没有恶意的小慌.
玛丽：你能给我举一个关于白色谎言的例子么?
史密斯：当然可以.