名词 n. [C]1.气球,氢气球2.(用作玩具的)气球The girl was startled when the balloon exploded. 这女孩在气球爆炸时吃了一惊。3.(漫画中圈出人物对白的)气球形圆圈4.气球形物;球形短颈玻璃容器不及物动词 vi. 1.像气球般鼓起(或膨胀)[(+out/up)]2.乘气球上升;乘气球飞行3.激增Trade deficits have ballooned. 贸易逆差急速增大。及物动词 vt. 1.使像气球般鼓起(或膨胀)He balloons his cheeks when he is hesitant. 他迟疑不决时会鼓起双颊。