find out the source

• 溯源

find out the source的用法和样例：

例句

1. He likes to trace the origins of all things.
   什么事他都喜欢推本溯源。
2. The result commensurability comes from in the food safe examination may trace to the source.
   结果的可比性来自于食品安全检测的可溯源性。