to maintain exclusive control over a market or trade

antitrust legislation; laws designed to promote competition by regulating or preventing monopolies

The state of controlling and monopolizing nuclear weapons to prevent other nations from possessing them; a nuclear monopoly

ditch between ridges in a field used for irrigation, drainage, or fertilizing

A raised mound of earth between fields used for marking boundaries, retaining water, or as a path for walking.

A method of planting crops on raised mounds of soil or gradually piling soil around the roots of crops

A raised ridge of soil in a field used for planting crops

Rows of tiles on a roof, typically arranged in a pattern of ridges and grooves to allow rainwater or melted snow to flow away; also written as [[瓦楞|瓦楞|wa3 leng2]].

A grave or burial mound; an earthen mound.

(regional) to get along well; to hit it off; to be congenial or like-minded

to break up or prevent monopolies; anti-monopoly or antitrust laws and measures

Capital used to control production and markets to secure high profits and a dominant position, especially in a capitalist system; also known as [[独占资本|獨占資本|du2 zhan4 zi1 ben3]]

A market situation where a small number of sellers or producers dominate an industry

to have sections of a farm ridge where crops have failed to sprout or have been broken off

ark shell or blood clam, especially in the context of traditional medicine or its ridged shell

an agreement or association formed to restrict competition or fix prices; a joint monopoly

a ridge in a wheat field; a raised row of soil where wheat is planted or growing