a piece of cake
US /ə piːs əv keɪk/
UK /ə piːs əv keɪk/

成語
1.
小菜一碟, 輕而易舉
something that is very easy to do
範例:
•
The exam was a piece of cake; I finished it in half the time.
考試非常簡單;我用了一半的時間就完成了。
•
Learning to ride a bike was a piece of cake for him.
對他來說,學騎自行車輕而易舉。
在 Lingoland 學習這個單詞