And she makes a case for a return to a sort of more direct exchange system, which, she says, would improve accountability and resilience.
她还提出了回归一种更直接的交换体系的理由，她说，这将提高问责性和适应能力。
英语百科
Exchange interaction
（重定向自Direct exchange）
In physics, the exchange interaction (with an exchange energy, and exchange term) is a quantum mechanical effect that only occurs between identical particles. Despite sometimes being called an exchange force in analogy to classical force, it is not a true force, as it lacks a force carrier.