A week ago, our class went to the cinema to watch a movie under the lead of our Chinese teacher. by accident, we took up our math class.

一周前，语文老师带我们班去电影院看电影，因为一些意外我们把数学课给占用了。

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The motor vehicles insurance is the primary property insurance class, and one of its characteristics is the high accident frequency.

机动车辆保险是财产保险的主要险种，它的一个特点是出险频率高。

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On the way home my father told me of an accident that took place on his first day at school in Mr. Crossett's class.

在回家的路上，父亲给我讲了他第一天上学时在克罗·塞特先生课上的一件事。

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As part of my job, I reported alarming inadequacies: in one case high-grade equipment (ASME III, class 1) was operated in nuclear power reactors with no accepted safety file, regardless of a previous accident and a half-dozen failures in achieving acceptable design results.

BBC: Can nuclear power ever be safe?