boil down to归根结底是

1. The argument boils down to ethnics rather than laws.

2. 例子: The various changes taking place in my hometown boil down to the economic development.

    场景: 过年回家发现家乡变化很多，大城市的吃的喝的玩的，家乡小县城也都有。

3. 同义替换: boil down to/come down to

4. 值得品味: Big, sweeing life changes really boil down to small, every decesions.