to discuss politely; to deliberate or bring up various ideas for discussion; often used when offering a different opinion for consideration

to hold a monopoly; to control certain goods as a state monopoly in order to increase tax revenue

To levy salt taxes or manage the government monopoly and regulation of salt, a practice common in imperial China starting from the Tang Dynasty.

(literary) to levy taxes on tea or implement a government monopoly on the tea trade, a system beginning in the Tang dynasty

system of government monopoly on the production and sale of alcohol established after the Han Dynasty; by extension, any government measures to regulate the liquor industry