both-way

The process is essentially dynamic with ideas and feedback flowing both ways.

这个过程本质上是动态，有各种建议与反馈双交流。

Banning imports of cars could cut both ways: other countries may ban the import of cars produced here.

禁止进口汽车是一把双刃剑：他国家同样可以禁止进口这里出产汽车。