there and then

例句：

1. 1. He sat down there and then and started to eat the food.
   他立刻坐下来开始吃食物。
2. 2. She stood there and then and looked around.
   她立刻站在那里四处张望。
3. 3. They decided to go there and then.
   他们决定立刻去那里。