预约成功
balloon
名词: balloonist 过去式: ballooned 过去分词: ballooned 现在分词: ballooning 第三人称单数: balloons
n.气球;球状物
vt.使膨胀
vi.乘气球飞行;激增;如气球般膨胀
adj.气球状的
例句：用作名词 (n.)
A balloon floated across the sky.
有个气球从空中飘过。
用作及物动词 (vt.)
He balloons his cheeks when he is hesitant.
他迟疑不决时会鼓起双颊。
用作不及物动词 (vi.)
He tried to balloon around the earth but storms forced him to land in China.
他试图乘气球做环球旅行，但风暴迫使他降落在中国。
