Big cheese 重要人物
在一个企业里，核心领导人物往往被称为 big cheese。这个表达的字面意思是大奶酪，一个非常口语化的称呼，所以在使用时要格外注意场合，最好别直接叫领导 big cheese。
If you want to get anything done here, you need to speak to the big cheese.
Since he became the big cheese he doesn't have time for us anymore.
另一个包含 cheese 的短语是 like chalk and cheese, 字面意思是像粉笔和奶酪，常用来形容两个人的个性或面貌截然不同。
My two children are like chalk and cheese – one is tall with fair hair and blue eyes and the other is short with dark hair and dark eyes.
Me and my brother are like chalk and cheese – I'm really shy and quiet and he's really talkative and sociable.