He believes in state intervention in the economy.他相信,国家有必要对经济进行干预。
His intervention brought their quarrel to a climax.他的介入使他们的争吵达到高潮。
Repeated interventions on the currency markets have failed to prevent the value of the currency falling.屡次对货币市场进行干预,但未能阻止货币价值下跌。