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产品管理团队针对 COVID-19 病毒疫情的特别说明：随着越来越多的学校转为使用完全在线课程，该团队已采取多项积极主动的基础结构措施来为大大增加的流量做好准备。我们将继续保持密切关注，并采取所需的任何其他举措来提供顺畅的服务。
As we experience an increase in Collaborate usage, we made the decision to disable some Collaborate features. We will continue to evaluate the usage to determine when we can reactivate them again. Learn more from the Support Bulletin in Behind the Blackboard.