海阔天空

The ironic part is that the principal spent quite a bit of time talking about attitude but when he began, I saw some teachers take their cell phones out. Some slouched in their chairs and read magazines. Others hunched over their lesson books to prepare for class. Many others simply talked in hushed tones about everything under the sun except the meeting.

具有讽刺意味的是校长花不少的时间讲态度的问题，但他一开始讲，我就看到有些老师拿出手机，有的老师没精打彩地坐在椅子上看杂志，有的躬下身子在教材上备课，还有很多老师干脆交头接耳，话题海阔天空，除了不谈会议内容。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。