idea可數嗎

It would be a good idea to call before we leave.

我們出發之前打個電話是個好主意。

I'd like to take this idea a step further.

我想把這一思想深化一步。

I had some idea of what the job would be like.

我對於這份工作有了一些瞭解。

By that time I had lost interest in the idea.

那時我已經對此想法失去興趣了。

Many people do not like the idea of experiments on animals.

許多人不贊成在動物身上做試驗。

He has no idea how to run a business.

他絲毫不懂企業管理。