- 【口】容易之事；輕鬆愉快的事No sweat. This project will be a piece of cake.
沒問題，這項計畫不費吹灰之力。
We need not have worried about the math exam. It was a piece of cake.我們本不必擔心數學考試，實際上很容易。
辨析
同義參見:
effortless
piece of cake
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