A cold war can occur if there is no free and intimate communication between the couple, or when the misunderstanding between both goes on without clearing away.

如果夫妻间没有自由和亲密的交流，或隔阂长期得不到消除，冷战就可能会发生。

youdao

Titanium dioxide suffered because of a price war between a couple of major producers two years ago.

CNN: Money & Investing