The weatherman sent a trial balloon into the air.
The director of the hot air balloon event send a trial balloon into the air to test the wind direction.
My mum pooed on my balloon
In a sentence? "He blew up the balloon with a tank of helium."
Example sentence - The pilot of a balloon is called an aeronaut.
I was there when the balloon was released.
The untethered balloon flew away
there was trial and error? haha
The defendant faced a long and difficult trial in court.
I sat there and watched the balloon deflate
The balloon will reappear in just a moment or two.
the balloon flow away
The trial ended in an acquittal for the defendant.
This Is Alice - 1958 Trial Balloon 1-18 was released on: USA: 1958