n.热气球运动，乘热气球飞行
v.(突然)膨胀，涨大，乘热气球飞行
balloon的现在分词

原形：balloon第三人称单数：balloons复数：balloons过去式：ballooned过去分词：ballooned现在分词：ballooning

Gas dilates the balloon.
气体使气球膨胀。
A balloon floated across the sky.
气球飘过天空。
I blew up the balloon and tied it to a string.
我把气球吹起来并用绳子系住。
The children's faces lit up with joy when they saw the colorful balloons floating in the air.
当孩子们看到空中飘着五彩斑斓的气球时，他们的脸上洋溢着喜悦。
She released the helium-filled balloon, and it soared high into the sky.
她放飞了充满氦气的气球，它高高地升上了天空。
Balloons were the centerpieces at the party, adding a festive touch to the room.
气球是派对的焦点，给房间增添了节日气氛。
They used balloons to advertise the event on the streets.
他们在街道上用气球做广告来宣传活动。
She carefully untangled the tangled balloon strings without popping any.
她小心翼翼地解开纠结的气球线，没有弄破任何一个。
The little boy was fascinated by the balloon that he could not stop chasing after it.
小男孩被那个气球迷住了，一直在追着它跑。
We released a flock of doves and balloons at the end of the ceremony as a symbol of peace.
在仪式结束时，我们放飞了一群鸽子和气球，象征和平。
She popped a balloon and a loud 'pop' echoed through the room.
她戳破了一个气球，房间里响起了巨大的“砰”声。
The hot air balloon ride provided breathtaking views of the countryside.
热气球之旅为乡村景色带来了令人惊叹的视野。