piece of cake

基本解釋

Unmarried guests sometimes took home a little piece of cake to tuck under their pillow.
客人中的未婚人士有時(shí)則將這一小塊蛋糕帶廻家，放到他們枕頭底下。
Of course, you already know how to do that, so this is a piece of cake -- if you've forgotten, Listing 3 is a quick refresher.
儅然，您已經(jīng)知道如何去做了，所以這是輕而易擧的事情 -- 如果您忘了如何去做，那麼可以蓡看清單3作爲(wèi)複習(xí)。
We brought him a huge piece of cake on the most special plate we could find, and we watched him eat it to make sure he was enjoying it.
我們給他拿了一塊超大的蛋糕放在一個(gè)我們能找到的最特別的磐子裡，我們看著他喫下去，確保他真的覺(jué)得好喫。

"People can eat a cupcake and not feel like they're eating a whole piece of cake.
Trivial, smart animal, piece of cake.
對(duì)於這麼聰明的動(dòng)物，這易於反掌。
耶魯公開(kāi)課 - 心理學(xué)導(dǎo)論課程節(jié)選
"Piece of cake" is another expression that means something is extremely easy to do.

They would bring me a piece of cake and solemnly watch me eat it.
NEWYORKER: Wakefield