spread yourself too thin

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to try to do too many things at the same time, so that you cannot give enough time or attention to any of them

同时做太多事情(以致没有足够时间或精力关注任何一个) 贪多嚼不烂, 样样做不好。

I realized I'd been spreading myself too thin so I resigned as secretary of the golf club.

我意识到我做的事情太多，因此我辞去了高尔夫球俱乐部的秘书一职。

You can't chase every opportunity because you will spread yourself too thin.

你不能追逐所有机遇，因为那样会使自己的业务变得分散。