章振邦新编高级英语语法：

"Did you enjoy yourselves?"

"I should just (=absolutely) say we did" 或 "Didn't we just!".

回答时说: I should ... 这里的should究竟是什么含义？

牛津词典释义：

1.

used with I and we to give opinions that you are not certain about （与I和we连用，表示没有把握）

I should imagine it will take about three hours. 我想得用差不多三个小时吧。 

‘Is this enough food for everyone?’ ‘ I should think so .’ “这些食物够所有人吃吗？”“我觉得够了吧。”

‘Will it matter?’ ‘ I shouldn't think so .’ “这有关系吗？”“不会吧。”

2.

used for expressing strong agreement （表示十分赞同）

‘I know it's expensive but it will last for years.’ ‘ I should hope so too! ’ “我知道价钱贵，但能用好多年。”“我也是这么想的！”

‘Nobody will oppose it.’ ‘ I should think not! ’ “谁也不会反对的。”“我想也是！”

所以：很迷惑，不懂这里的I should just...should究竟是牛津词典释义的哪一种含义？经常看见这种类似的例句I should do...所以，麻烦老师

分析一下。

另外，顺便请教老师，回答时说 "Didn't we just!".  是表达了什么意思？