A flexible, nonporous bag inflated with a gas, such as helium, that is lighter than the surrounding air, that causes the bag to rise and float in the atmosphere.气球：一种有弹性、无孔充气后膨胀的气囊，如充入比周围空气轻的氦气后能使气囊上升并漂浮在大气中Such a bag with sufficient capacity to lift a suspended gondola or other payload.飞船：有足够能力提升一个悬浮船或其它重载的这种气囊Any of variously shaped, brightly colored inflatable rubber bags used as toys.玩具气球：一种形状多样、色彩明快、可用作玩具的充气橡胶囊Medicine A sac that is inserted into a body cavity or tube and distended with air or gas for therapeutic purposes, such as angioplasty.【医学】 充气囊：出于治疗目的而插入体腔或体管内的充满空气或其他气体的囊，如血管成形术A rounded or irregularly shaped outline containing the words that a character in a cartoon is represented to be saying.气球形圆圈：圈有卡通片中人物所说的话的圆形或不规则线条v.（动词）bal.looned,bal.loon.ing,bal.loons v.intr.（不及物动词）To ascend or ride in a balloon.乘气球飞行：乘气球上升或驾驶气球To expand or swell out like a balloon.See Synonyms at bulge 象气球一样膨胀：象气球一样延展或膨胀参见 bulgeTo increase or rise quickly.激增，飞涨：迅速增长或上升v.tr.（及物动词）To cause to expand by or as if by inflating.使…膨胀：因或似因充气而引起膨胀adj.（形容词）Suggestive of a balloon, as in shape:气球般的：让人想起气球的，如在形状上：例句：balloon curtains.气球状围幕

来源：French ballon 法语 ballon from Italian dialectal ballone [augmentative of] balla [ball] 源自 意大利方言 ballone [] balla的增义成分 [球] [of Germanic origin] * see bhel- 2[源于日耳曼语的] *参见 bhel- 2【引伸】balloon.istn.（名词）