so far
until this time or to this place到现在为止；到这里为止
So far no further news had been obtained．至今没有得到进一步的消息。
When the water has risen so far the pumps will be brought into action．水涨到这么高时，就要开动水泵。
The weather has been hot so far this summer．今年夏天天气一直很热。
This is a lonely road， we have not met another car so far．这是一条很冷僻的路，到现在我们还未遇到任何其它车子。