...just only us during that time.is that right?according to the title

问题描述:

...just only us during that time.
is that right?according to the title

直接说just us
during that time改成at that time

那个时期只有我们

将only去掉.
若楼主的原意是“在那个时候只是/只有我们”则应将during改为at.

文法是对的。可是只有那么一句的话,不知道前面或后面接上后又没有问题。