wind (something) down
phrasal verb with wind verb uk/waɪnd/ us/waɪnd/ wound | wound
（使）逐渐结束
to end gradually or in stages, or to cause something to do this
The government intends to wind the scheme down in the spring. 政府有意在早春时节将这个计划逐渐收尾。
Unfortunately, the party was just winding down as we got there. 不巧的是，我们赶到时聚会已接近尾声了。
（使）（企业或机构）逐渐关闭，（使）慢慢倒闭
If a business or organization winds down, or if someone winds it down, the amount of work it does is gradually reduced until it closes completely.
They're winding down their operations abroad because they're losing money. 因为亏损，他们正在逐步缩减海外业务。