balloon
US /bəˈluːn/
UK /bəˈluːn/
1.
气球
a small, thin rubber bag that is inflated with air or gas until it is round or oval in shape, used as a toy or for decoration
:
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The child was holding a red balloon.
孩子拿着一个红色的气球。
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We decorated the room with colorful balloons for the party.
我们用五颜六色的气球装饰了房间，为派对做准备。
2.
热气球
a large bag filled with heated air or gas to make it buoyant, able to float in the air with a basket for passengers or equipment suspended below
:
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They took a scenic ride in a hot-air balloon.
他们乘坐热气球进行了风景优美的旅行。
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The pilot prepared the hot-air balloon for takeoff.
飞行员准备热气球起飞。