whichto的用法总结

　　He has four weeks in which to lodge an appeal.

　　他有4个星期的时间提出上诉。

　　We will then have a firmer foundation of fact on which to build theories

　　那样我们将会获得一个建立理论所需的更为牢固的`事实基础。

　　The post will give him a powerful political base from which to challenge the Kremlin

　　这个职位将给他提供一个强有力的政治基点来挑战克里姆林宫。

　　We guarantee that you will find a community with which to socialise

　　我们保证你们会找到自己的交际圈。

　　Officials say the options will offer investors a longer time in which to accrue profits.

　　官员说这些期权会给投资者提供更长的利润积累期。