cet 4 求翻译And by then people were just happy to have a decent

cet 4 求翻译And by then people were just happy to have a decent quantity of food in their kitche
And by then people were just happy to have a decent quantity of food in their kitchens.
cet4 2011-6 快速阅读
答案是 只要有足够的食物 人们就感到很高兴了
我想知道 这里面的just 用法是什么 或者说 意思是什么 最好给出类似的句子
查了半天 感觉哪个都对不上