Translation:We all feel a bit tired.
There is no context, so shouldn't a correct answer also be: "We both feel a bit tired."?
Technically I think you would use 俩 (liǎ) for both, so you would say 我们俩觉得有点儿累。Although I might be wrong myself.
Hmm.... I wonder if grammar is an issue here. We normally dont use We all. We feel a little tired; We feel pretty tired. I guess its the sentence structure.
"We all" is often used to emphasize something common among a group of people in the US.
In other question "all" is not needed. Why do you need "we all" to be correct this time, eh duo?
I think it's because there's 都 in this sentence, and that roughly translates to 'all' or 'both' depending on how many people there are.