在英語中有一個結構是「as..... as 」,可以翻譯為「和...一樣」。「as good as」這個短語從字面意思來看，即是「和...一樣好」。但是，在以下短語中，「as good as」卻與其本來的意思大相逕庭。我們一起來學習一下吧！
Your guess is as good as mine .
Guess 意思為猜測，猜想。這句話的本意為「你的猜想和我一樣」。
不過這個習慣用語的意思是 you do not know anymore about a subject than the person that you are talking to .也就是 "我和你一樣不知道"、"我和你一樣心中無數"。
例句
A: "Where s Mr. Smith?"
B: "Your guess is as good as mine.
He didn t say anything to me."
史密斯先生在哪？
我也不知道，他什麼也沒和我說。
我們再來拓展兩個同義短語來表示「我也不知道」。
01、not have a clue
You don t have a clue when
that meeting starts, do you?
你也不知道那場會議什麼時候開始，是嗎？
02、it beats me
It beats me—I really have no idea
how to get to the library from here.
這可難倒我了-我真不知道從這如何到達圖書館。
as good as gold
As good as gold means to behave very well，especially a kid.
As good as gold 的真實含義是「規規矩矩，很乖，表現好」，特別用來指代小孩子規矩的言行。
例句
She s been as good as gold all morning .
她一上午表現都很好。
The children are all as good as gold when visiting the old people s home.
在拜訪老人之家的時候，孩子們的表現非常好。
03、as well as的用法
as well as常用來連接兩個並列的成分，作「也，還」解。它強調的是前一項，後一項只是順便提及。因此連接並列主語時，謂語動詞與前一項一致；而用not only ...but also...連接時，謂語動詞與後一項一致。如：
Your wife as well as you is friendly to me.
不僅你而且你的妻子也對我很友好。
（＝Not only you but also your wife is friendly to me、）
Electric energy can be changed into light energy as well as into sound energy.
電能既可以被轉變成聲能，又可以被轉變成光能。
as well as 用來表示同級比較，指「一樣好」。如：
You look as well as you did ten years ago.
你的身體看起來還和十年前一樣好。
He plays the guitar as well as you.
他的吉他彈得和你一樣好。
最後：
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