It would be a good idea to call before we leave.
我们出发之前打个电话是个好主意。
I'd like to take this idea a step further.
我想把这一思想深化一步。
I had some idea of what the job would be like.
我对于这份工作有了一些了解。
By that time I had lost interest in the idea.
那时我已经对此想法失去兴趣了。
Many people do not like the idea of experiments on animals.
许多人不赞成在动物身上做试验。
He has no idea how to run a business.
他丝毫不懂企业管理。