小组合作在许多情况下都是一种非常有效的方式，可以实现更高效的工作和更好的成果。然而，小组合作也有一些缺点，这些缺点可能会对小组的成果和工作效率产生消极影响。

首先，小组合作容易出现分歧或者意见不合。不同的组员可能会有不同的想法或者方法，这可能会导致小组在决策和实施方面产生分歧。这些分歧可能会浪费时间和精力，并可能导致小组成员之间的冲突。

其次，小组合作可能会出现个人贡献不平衡的问题。有些小组成员可能会比其他成员更积极主动，或者拥有更多的专业知识和技能。这些成员可能会承担更多的工作量，导致其他成员参与度较低或者产生不满。

最后，小组合作可能会被一些成员视为“浪费时间”。有些成员可能会认为小组讨论和决策的过程比较缓慢，或者不如自己独立完成工作来得高效。这些成员可能会对小组合作持消极态度，从而影响整个小组的氛围和工作效率。

In many cases, group cooperation is a very effective way to achieve more efficient work and better results. However, group cooperation also has some drawbacks that may have a negative impact on the group's results and work efficiency.

Firstly, group cooperation is prone to differences or disagreements. Different members may have different ideas or methods, which may lead to disagreements in decision-making and implementation. These disagreements may waste time and energy and may lead to conflicts between group members.

Secondly, group cooperation may encounter the problem of uneven individual contributions. Some members may be more proactive or have more professional knowledge and skills than other members. These members may bear more workload, leading to low participation or dissatisfaction among other members.

Finally, some members may view group cooperation as 'a waste of time'. Some members may think that the process of group discussion and decision-making is relatively slow or not as efficient as completing the work independently. These members may hold a negative attitude towards group cooperation, thereby affecting the atmosphere and work efficiency of the entire group.