you cannot have your cake eat it
鱼与熊掌不可兼得
以上为机器翻译结果，长、整句建议使用 人工翻译 。
You cannot have your cake and eat it too.
鱼与熊掌，不可得兼。
youdao
You cannot eat your cake and have it.
（谚语）你不能两者兼得。
You cannot have your cake and eat it.
你不能又要留饼，又要吃它。
However, you just cannot have your cake and eat it too.
FORBES: The BP oil rig disaster -- better brace yourself: there is surely more to come
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