我有一个大气球英文怎么说

"大气球" 的英文是 "balloon."

这个词源自于法语 "ballon," 在17世纪由意大利语 "palla" 演变而来,意思是 "气球"。

例句:

I'm going to take a ride in a hot air balloon. (我要乘坐热气球飞行)
The children were given balloons at the party. (在派对上，孩子们被给予气球)
The balloon rose into the sky. (气球升入天空)