Definition
To experience a sudden and urgent need to use the restroom, often at an inopportune moment.
（尤指不方便時）突然感到需要如廁；內急。
We were on the highway when he was suddenly caught short, it was so inconvenient.
我們在高速公路上時，他突然感到內急，這非常不方便。
She was caught short in the middle of her speech and had to take a pause.
她在演講中途突然感到內急，不得不暫停一下。
I was caught short on the long train journey, which was terrible.
我在漫長的火車旅程中感到內急，這真是太糟糕了。