课程助理一周回到课程几个小时，来帮助你们，在上机的时候一对一帮助你们完成这些问题集。
Course assistants returned to the course for a couple of hours a week, to help you, one on one with office hours, with problem sets.
希望是一种定义人性的要素，拿它来结束我们《百件物品中的世界历史》这系列第一周五集节目岂不鼓舞人心？
Hope, as the defining human quality - wouldn't that be an encouraging note in which to end this first week of our history of the world?
在承受了一周的损失之后美国市场在周五集合起来，但是昨天未来市场交易者预测今天澳洲市场开盘较低而不是跟随海外势头。
Us markets rallied on Friday after a week of losses, but yesterday futures market traders predicted the Australian market would open lower today rather than follow the lead from overseas.
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