知识扩展
常用短语 air balloon气球
hot-air balloon n.热气球
weather balloon气象气球；探空气球
balloon angioplasty[外科学]气囊血管成形术；球囊成形术（等于percutaneous transluminal angioplasty）

中文词源： balloon 气球 ball, 球。-oon, 大词后缀，同million, 大的千，百万。 balloon
精选例句

常见考点例句：

Mr. park said the balloon flight wednesday would go ahead .

朴相鹤说，周三释放气球的计划将会实施。

Borrowing has continued to balloon .

而借债还会继续膨胀。

All told council membership might balloon to 25 states or more .

总之，安理会成员可能激增至25或更多个国家。

Underneath this balloon was the tiny steel sphere holding the pilots .

在气球下面是很小的钢面控制着导向器。

Think of the universe as an empty balloon with dots on it .

把宇宙想象成一个表面绘着点的气球。