So far as I know, he will come tomorrow.

就我所知，他明天会来。

So far as I know, the project is already completed.

就我所知，这个项目已经完成了。

So far as I know, he is a very good teacher.

就我所知，他是一个非常好的老师。

So far as I know, she has moved to a new city.

就我所知，她已经搬到新城市了。

So far as I know, the food at this restaurant is delicious.

就我所知，这家餐厅的食物很好吃。

Insofar as I know, the meeting is still scheduled for tomorrow.

在...范围内我所知，会议仍然定在明天。

Bring your friends by all means - just as long as I know how many are coming.

一定要带上你的朋友——只要我知道有多少人要来。

Bring your friends by all means - just so long as I know how many are coming.

务必带上你的朋友——只要我知道有多少人要来。

As far as i know are still,

就我所知仍是那样

I know that as long as I lightly a blow.

我知道，只要我轻轻一吹一吹。