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.

　　我對于這份工作有了一些了解。

　　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。