fundamental reason

• 根源

fundamental reason的用法和样例：

例句

1. Oppression is the reason of unhappiness.
   压抑，是不快乐的根源。
2. One reason for this may lie in the inevitable cross-fertilisation of races and cultures, of which the Strauss family provides an example.
   这种结果的根源也许在于不可避免的种族与文化的交融和相互渗透，而是特劳斯家族正是其中一个例证。