波士顿拥有美国最好的公立学校系统，他们安排课程表会考虑到可以让教授同一门课程的老师们有时间一起进行日常备课。

In Boston, which has one of America's most improved public-school systems, schedules are arranged so that those who teach the same subject have free classes together for common planning.

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说上面这翻话的是拉吉·莫汉蒂和他波士顿大学的同事们。他们共同创造了可组成微型机械计算机的纳米级机械逻辑门。

So say Raj Mohanty of Boston University and his colleagues, who have created a nanoscale mechanical logic gate that could form the basis of tiny mechanical computers.

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