n. 马齿龈；（木、金属等的）条；栅栏；酒吧（bar的复数形式）

n gymnastic apparatus consisting of two parallel wooden rods supported on uprights

n a room or establishment where alcoholic drinks are served over a counter

n a counter where you can obtain food or drink

n a rigid piece of metal or wood; usually used as a fastening or obstruction or weapon

n musical notation for a repeating pattern of musical beats

n an obstruction (usually metal) placed at the top of a goal

n the act of preventing

n (meteorology) a unit of pressure equal to a million dynes per square centimeter

n a submerged (or partly submerged) ridge in a river or along a shore

n the body of individuals qualified to practice law in a particular jurisdiction

n a narrow marking of a different color or texture from the background

n a block of solid substance (such as soap or wax)

n a portable .30 caliber automatic rifle operated by gas pressure and fed by cartridges from a magazine; used by United States troops in World War I and in World War II and in the Korean War

n a horizontal rod that serves as a support for gymnasts as they perform exercises

n a heating element in an electric fire

n (law) a railing that encloses the part of the courtroom where the judges and lawyers sit and the case is tried

v prevent from entering; keep out

v render unsuitable for passage

v expel, as if by official decree

v secure with, or as if with, bars