we are team语法正确吗

解析：we are team语法上有问题，缺少冠词。

更正：we are a team. 我们是一个团队。虽然说写为“we are in the same team”也是可以的。但是追求简略，“we are a team”和前者所表达的意思大致一样，选用“we are a team”更佳。