在英语中，常用as flat as a pancake这个短语来形容某物特别平坦。
- It's a perfect day for sailing because the sea is as flat as a pancake.
- Cycling around here is easy, the countryside is as flat as a pancake.
值得注意的时候，与flat相关的短语还有一个“fall flat on your face”，字面意思是摔趴下脸贴在地上，实际上一般用这个短语来形容做某事失败了或因做错事情而感到尴尬、不体面。
- If we don't get any funding, this building project will fall flat on its face.
