“市场干预”常见的英文表达是 market intervention 。
例句：
The government announced a series of market intervention measures to stabilize the economy.（政府宣布了一系列市场干预措施以稳定经济。）
Market intervention should be carried out cautiously to avoid unintended consequences.（市场干预应谨慎进行，以避免产生意外后果。 ）