挑战之二是取消进口航油保税和补贴，国家对价格不再管制；

The second challenge is to abolish the tax-free imports of jet fuel and subsidies, the state no longer control prices;

youdao

挑战之二是取消进口航油保税和补贴，国家对价格不再管制；

The second challenge is to abolish the tax-free imports of jet fuel and subsidies, the state no longer control prices;

youdao